JP4065403B2 - Metal complex-type squarylium compound and optical recording medium using the same - Google Patents
Metal complex-type squarylium compound and optical recording medium using the same Download PDFInfo
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- JP4065403B2 JP4065403B2 JP2002552074A JP2002552074A JP4065403B2 JP 4065403 B2 JP4065403 B2 JP 4065403B2 JP 2002552074 A JP2002552074 A JP 2002552074A JP 2002552074 A JP2002552074 A JP 2002552074A JP 4065403 B2 JP4065403 B2 JP 4065403B2
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 84
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 title claims abstract description 34
- 230000003287 optical effect Effects 0.000 title claims description 44
- 125000001424 substituent group Chemical group 0.000 claims abstract description 67
- 125000003118 aryl group Chemical group 0.000 claims abstract description 41
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 37
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 24
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 14
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 43
- 239000000758 substrate Substances 0.000 claims description 26
- 125000005843 halogen group Chemical group 0.000 claims description 17
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 125000003545 alkoxy group Chemical group 0.000 claims description 14
- 125000004429 atom Chemical group 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 239000004611 light stabiliser Substances 0.000 claims description 11
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 9
- 125000003277 amino group Chemical group 0.000 claims description 8
- 230000008033 biological extinction Effects 0.000 claims description 8
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 8
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- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 5
- 125000002723 alicyclic group Chemical group 0.000 claims description 3
- 150000004982 aromatic amines Chemical class 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
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- 239000000463 material Substances 0.000 abstract description 25
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- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 56
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- -1 etc.] are preferable Chemical compound 0.000 description 9
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- PSQCMVQGPMFFCX-UHFFFAOYSA-N 2-phenyl-5-(trifluoromethyl)-1h-pyrazol-3-one Chemical compound N1C(C(F)(F)F)=CC(=O)N1C1=CC=CC=C1 PSQCMVQGPMFFCX-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
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- 125000005647 linker group Chemical group 0.000 description 5
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- PWEBUXCTKOWPCW-UHFFFAOYSA-N squaric acid Chemical group OC1=C(O)C(=O)C1=O PWEBUXCTKOWPCW-UHFFFAOYSA-N 0.000 description 5
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229940125782 compound 2 Drugs 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
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- 125000004433 nitrogen atom Chemical group N* 0.000 description 4
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- 229920000728 polyester Polymers 0.000 description 4
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- 235000011181 potassium carbonates Nutrition 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
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- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
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- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- WVIICGIFSIBFOG-UHFFFAOYSA-N pyrylium Chemical compound C1=CC=[O+]C=C1 WVIICGIFSIBFOG-UHFFFAOYSA-N 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003039 tetrahydroisoquinolinyl group Chemical group C1(NCCC2=CC=CC=C12)* 0.000 description 1
- 125000000147 tetrahydroquinolinyl group Chemical group N1(CCCC2=CC=CC=C12)* 0.000 description 1
- 150000003536 tetrazoles Chemical group 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- BRNULMACUQOKMR-UHFFFAOYSA-N thiomorpholine Chemical group C1CSCCN1 BRNULMACUQOKMR-UHFFFAOYSA-N 0.000 description 1
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(II) oxide Inorganic materials [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- WOZZOSDBXABUFO-UHFFFAOYSA-N tri(butan-2-yloxy)alumane Chemical compound [Al+3].CCC(C)[O-].CCC(C)[O-].CCC(C)[O-] WOZZOSDBXABUFO-UHFFFAOYSA-N 0.000 description 1
- 150000003852 triazoles Chemical group 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000001018 xanthene dye Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/007—Squaraine dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
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- Chemical & Material Sciences (AREA)
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- Plural Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【0001】
【発明の属する技術分野】
本発明は、光記録分野に使用することのできるスクアリリウム化合物およびそれを用いた光記録媒体に関する。
【0002】
【従来の技術】
近年、CD−R(追記型コンパクトディスク)よりもより高密度な追記型光記録媒体として、DVD−R(追記型デジタルバーサタイルディスク)の開発が進められている。CD−R、DVD−Rとも記録材料として有機色素を使う点においては同様であり、信号(情報)の記録および再生においても原理的には同様である。そのため、記録材料に求められる分光特性以外の諸特性(耐光性、溶解性、熱分解性)については、CD−R用に開発された有機色素でも、基本的にはDVD−Rの記録材料に求められる要求を満足できる。しかし、DVD−Rへの信号の記録、あるいはDVD−Rからの信号の再生に用いられる半導体レーザの発振波長は600〜700nmであり、この波長は、CD−Rで用いられている半導体レーザの発振波長よりも短波長である。そのため、DVD−Rで使われる記録材料は、CD−Rの記録材料に比べ、膜状態での長波長側の吸収端が短波長側にくるものでなくてはならず、CD−Rの記録材料として開発されたシアニン色素、アザアヌレン色素、インドアニリン金属キレート色素等(「エレクトロニクス関連色素」シーエムシー、1998年)をDVD−R用記録材料として用いることはできない。
【0003】
本発明者らは従来より、異なる二種類の芳香族置換基を同一分子内に持つスクアリリウム化合物の開発を行なってきた。これらのスクアリリウム化合物は分子中央部にスクアリン酸骨格を持ち、その対角線上に位置する二ヶ所の炭素原子に芳香族化合物からなる置換基を有した構造をしている。それら二つの芳香族置換基が同一である場合には、これを便宜上対称型スクアリリウム化合物(または対称型スクアリリウム色素)と呼んでおり、異なる場合には、非対称型スクアリリウム化合物(または非対称型スクアリリウム色素)と呼んでいる。
【0004】
金属に配位し、キレート構造を形成したスクアリリウム化合物で、既に知られているものとして、式Aに示すアニリン誘導体を芳香族置換基として有する対称型スクアリリウム化合物がある(Chem. Ber. 103巻,3553〜3562頁,1970年)。
【0005】
【化1】
【0006】
しかし、この化合物は、一つの金属原子に複数のスクアリリウム化合物が配位した構造ではなく、また芳香環とスクアリン酸骨格の間の窒素原子が配位に関与している。
また、金属原子に複数のスクアリリウム類似の化合物が配位し、キレート構造を持つ化合物で、既に知られているものとして、式Bに示す化合物がある(「OXOCARBONS」 ACADEMIC PRESS 1980年,210頁,Robert West著)。
しかし、この化合物は、スクアリン酸骨格上の置換基を酸素原子から硫黄原子に置き換えたものであり、芳香環とスクアリン酸骨格の間の窒素原子が配位に関与しているものである。
【0007】
【化2】
【0008】
さらに、配位に関与する原子を芳香環の置換基として有し、複数のスクアリリウム化合物が一つの金属原子と錯体を形成した例として、式Cに示す化合物と金属との錯体が知られており、この錯体の用途として近赤外線吸収剤またはプラズマディスプレー用フィルターが挙げられている(特開2000−159776)
【0009】
【化3】
【0010】
(式中、XおよびX'は活性水素を有する基を表し、Y1およびY2は、水素原子、アルキルアミノ基等を表し、kおよびk’は1〜4の整数を表す。)
しかしながら、該公報においては、式Cに対応するスクアリリウム化合物として、以下の式Dで表されるスクアリリウム化合物しか具体的に開示されておらず、また、錯体構造についても具体的には示されていない。
【0011】
【化4】
【0012】
(式中、Z1〜Z6は、水素原子、アルキル基等を表す。)
一つの金属原子に、複数のスクアリリウム化合物が配位し、かつ配位に関与する原子が、スクアリン酸骨格の置換基である酸素原子と、一方の芳香環の置換基内の原子である構造を持つスクアリリウム化合物は未だ知られていない。
信号の記録感度および再生感度と密接な関わりのある記録材料の分光特性に関しては、DVD−Rで使用される半導体レーザの発振波長を考慮すると、溶液状態で測定された最大吸収波長(λmax)は550〜600nmの範囲にあることが望まれ、さらに最大吸収波長におけるlogε(εはモル吸光係数)は5以上であることが望まれる。
【0013】
また、記録感度と密接な関わりのある記録材料の熱分解特性については、250〜350℃の温度範囲で分解することが望まれる。
その他に耐光性、あるいは製膜に必要な溶媒に対する溶解性も求められるが、既知のスクアリリウム化合物をDVD−R用記録材料に用いた場合、得られるDVD−R用記録材料は、分光特性、耐光性、溶解性および熱分解特性の点から実用上満足されるものではない。前出の化合物Aは融点が350℃以上であり、化合物Cは最大吸収波長が830nm以上であり、化合物Bの物性に関するデータは無い。
【0014】
【発明が解決しようとする課題】
本発明の目的は、DVD−R用記録材料に適した分光特性、耐光性、溶解性および熱分解特性を持つスクアリリウム化合物およびそれを用いた光記録媒体を提供することにある。
【0015】
【課題を解決するための手段】
本発明者らは、前記事情に鑑みて研究を重ねた結果、ヒドロキシピラゾールを芳香族置換基として有するスクアリリウム化合物と配位能を有する金属原子とがキレート錯体を形成することを見出した。さらに、キレート錯体を形成して得られる化合物がDVD−R用記録材料として好ましい特性を有しているという知見を得た。本発明は、かかる知見に基づいてなされたものであり、式(I)
【0016】
【化5】
【0017】
[式中、R1およびR2は、同一または異なって、置換基を有していてもよいアルキル基、置換基を有していてもよいアラルキル基、置換基を有していてもよいアリール基または置換基を有していてもよい複素環基を表し;Qは配位能を有している金属原子を表し;qは、2あるいは3を表し;Aは置換基を有していてもよいアリール基、置換基を有していてもよい複素環基またはY=CH−(式中、Yは置換基を有していてもよいアリール基または置換基を有していてもよい複素環基を表す)を表す。]で表されるスクアリリウム化合物および該スクアリリウム化合物を含有する記録層を有する光記録媒体を提供するものである。
【0018】
【発明の効果】
本発明によれば、DVD−Rで使われる半導体レーザの発振波長に適した分光特性と熱分解特性を持つスクアリリウム化合物を提供することができる。また、本発明で得られたスクアリリウム化合物を光記録材料に用いることで、耐光性に優れ、反射率および変調度の高いDVD−Rメディアを提供することができる。
【0019】
【発明の実施の形態】
以下、本発明を説明するが、本明細書中においては、式(I)で表される化合物を化合物(I)という。他の式番号を付した化合物についても同様である。
まず、式(I)または後述する式(II)の各基の定義において、アルキル基およびアルコキシ基におけるアルキル部分としては、例えば、直鎖あるいは分岐状の炭素数1〜6のアルキル基または炭素数3〜8の環状アルキル基が挙げられ、その具体例としては、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、sec-ブチル基、tert-ブチル基、ペンチル基、イソペンチル基、1-メチルブチル基、2-メチルブチル基、tert-ペンチル基、ヘキシル基、シクロプロピル基、シクロブチル基、シクロペンチル基、シクロヘキシル基、シクロヘプチル基、シクロオクチル基等が挙げられる。
【0020】
アラルキル基としては、例えば、炭素数7〜15のアラルキル基が挙げられ、その具体例としては、ベンジル基、フェネチル基、フェニルプロピル基、ナフチルメチル基等が挙げられる。
アリール基としては、例えば、フェニル基、ナフチル基、アントリル基、アズレニル基等が挙げられる。
ハロゲン原子としては、塩素原子、臭素原子、フッ素原子、ヨウ素原子が挙げられる。
【0021】
アラルキル基、アリール基、アルコキシ基、芳香族環、複素環または複素環基の置換基としては、同一または異なって1〜5個の置換基、例えば、水酸基、カルボキシル基、ハロゲン原子、置換基を有していてもよいアルキル基、アルコキシ基、ニトロ基、置換基を有していてもよいアミノ基等が挙げられる。ハロゲン原子、アルキル基およびアルコキシ基としては、前記と同様なものが挙げられる。
アルキル基の置換基としては、同一または異なって1〜3個の置換基、例えば、水酸基、カルボキシル基、ハロゲン原子、アルコキシ基等が挙げられる。ハロゲン原子およびアルコキシ基としては、前記と同様なものが挙げられる。また、アルキル基の置換基としては、後述するアルキル基の置換基と同様のものが上げられる。
【0022】
アミノ基の置換基としては、同一または異なって1〜2個のアルキル基等が挙げられ、この場合のアルキル基としては前記と同様なものが挙げられる。
配位能を有している金属原子としては、例えば、アルミニウム、亜鉛、銅、鉄、ニッケル、クロム、コバルト、マンガン、イリジウム、バナジウム、チタン等が挙げられ、中でも3価の金属[アルミニウム、鉄(III)、クロム(III)、コバルト(III)、マンガン(III)、イリジウム(III)、バナジウム(III)等]が好ましく、アルミニウムがより好ましい。
隣り合う2つのR6が隣接する2つの炭素原子と一緒になって形成する芳香族環としては、ベンゼン環、ナフタレン環、アントラセン環等が挙げられる。
【0023】
複素環基における複素環またはR3とR4が隣接する炭素原子と一緒になって形成する複素環としては、例えば、窒素原子、酸素原子および硫黄原子から選ばれる少なくとも1個の原子を含む5員または6員の単環性芳香族あるいは脂肪族複素環、3〜8員の環が縮合した二環または三環性で窒素原子、酸素原子および硫黄原子から選ばれる少なくとも1個の原子を含む縮環性芳香族あるいは脂肪族複素環等が挙げられ、より具体的にはピリジン環、ピラジン環、ピリミジン環、ピリダジン環、キノリン環、イソキノリン環、フタラジン環、キナゾリン環、キノキサリン環、ナフチリジン環、シンノリン環、ピロール環、ピラゾール環、イミダゾール環、トリアゾール環、テトラゾール環、チオフェン環、フラン環、チアゾール環、オキサゾール環、インドール環、イソインドール環、インダゾール環、ベンズイミダゾール環、ベンゾトリアゾール環、ベンゾチアゾール環、ベンゾオキサゾール環、プリン環、カルバゾール環、ピロリジン環、ピペリジン環、ピペラジン環、モルホリン環、チオモルホリン環、ホモピペリジン環、ホモピペラジン環、テトラヒドロピリジン環、テトラヒドロキノリン環、テトラヒドロイソキノリン環、テトラヒドロフラン環、テトラヒドロピラン環、ジヒドロベンゾフラン環、テトラヒドロカルバゾール環、インドリン環等が挙げられる。
【0024】
R3とR4が隣接する炭素原子と一緒になって形成する脂環式炭化水素環としては、炭素数3〜8のものが挙げられ、飽和または不飽和のものであってもよく、例えば、シクロプロパン環、シクロブタン環、シクロペンタン環、シクロヘキサン環、シクロヘプタン環、シクロオクタン環、シクロペンテン環、1,3−シクロペンタジエン環、シクロヘキセン環、シクロヘキサジエン環等が挙げられる。
化合物(I)においては、Yが置換基を有していてもよいインドリン環である化合物が好ましく、中でも、Y=CH−が一般式(II)
【0025】
【化6】
【0026】
(式中、R3およびR4は、同一または異なって、置換基を有していてもよいアルキル基を表すか、あるいはR3とR4は隣接する炭素原子と一緒になって、脂環式炭化水素環または置換基を有していてもよい複素環を形成してもよく;R5は、水素原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアラルキル基または置換基を有していてもよいアリール基を表し;R6は、ハロゲン原子、置換基を有していてもよいアルキル基、置換基を有していてもよいアラルキル基、置換基を有していてもよいアリール基、ニトロ基、シアノ基または置換基を有していてもよいアルコキシ基を表し;nは0〜4の整数を表し;ここに、nが2〜4の場合、R6は同一または異なってもよく、さらに互いに隣り合う2つのR6が隣接する2つの炭素原子と一緒になって、置換基を有していてもよい芳香族環を形成してもよい。)で表される化合物がより好ましい。
以下、化合物(I)の一般的な製法について説明する。
【0027】
【化7】
反応式(1−a)
【0028】
【化8】
反応式(1−b)
【0029】
【化9】
反応式(1−c)
【0030】
【化10】
反応式(1−d)
(式中、R1、R2、A、Qおよびqは前記と同義であり、Yは水素原子、カリウム、ナトリウム等を表す。)
【0031】
反応式(1−a)
化合物(V)は、化合物(III)と0.7〜1.5倍モルの化合物(IV)とを、要すれば塩基存在下、溶媒中、0〜80℃で5分〜15時間反応させることにより得られる。
塩基としては、例えば、炭酸カリウム、炭酸ナトリウム、水酸化カリウム等の無機塩基またはトリエチルアミン、ナトリウムメトキシド等の有機塩基等が用いられる。塩基の使用量は、化合物(III)に対して0.7〜1.5倍モルであるのが好ましい。
溶媒としては、例えば、メタノール、エタノール、ジメチルホルムアミド等が用いられる。
【0032】
反応式(1−b)
化合物(VI)は、化合物(V)をアルカリ性溶媒中、または酸性溶媒中、0〜80℃で30分〜15時間処理することにより得られる。
アルカリ性溶媒としては、例えば、炭酸カリウム水溶液、炭酸ナトリウム水溶液、水酸化カリウム水溶液等が用いられる。
酸性溶媒としては、例えば、塩酸の50%容量/容量のジメチルスルホキシド水溶液、塩酸の50%容量/容量のジメチルホルムアミド水溶液等が用いられる。
【0033】
反応式(1−c)
化合物(VII)は、化合物(VI)と0.5〜2倍モルのA−Hとを、要すれば、0.5〜2倍モルの塩基存在下で、溶媒中、50〜120℃で5分〜15時間反応させることにより得られる。
溶媒としては、例えば、エタノール、プロパノール、イソプロピルアルコール、ブタノール、オクタノール等の炭素数2〜8のアルコール系溶媒単独、または該アルコール系溶媒とベンゼン、トルエンもしくはキシレン等との混合溶媒(アルコール系溶媒50容量/容量%以上のものが好ましい)等が用いられる。
塩基としては、例えば、キノリン、トリエチルアミン、ピリジン等の有機塩基または炭酸カリウム、炭酸水素カリウム、炭酸水素ナトリウム等の無機塩基等が用いられる。
【0034】
反応式(1−d)
化合物(I)は、化合物(VII)とQq+を与える原料とを、要すれば、0.5〜2倍モルの酢酸存在下で、溶媒中、室温〜120℃で5分〜15時間反応させることにより得られる。Qq+を与える原料は、化合物(VII)のモル数:Qq+を与える原料のモル数×qの比が1:0.5〜2となるように使用されるのが好ましい。
Qq+を与える原料としては、例えば、アルミニウムトリス(アセチルアセトネート)、アルミニウムトリス(エチルアセトアセテート)、アルミニウムイソプロポキシド、アルミニウムsec−ブトキシド、アルミニウムエトキシド、塩化アルミニウム、塩化銅、酢酸銅、酢酸ニッケル等が用いられる。
溶媒としては、例えば、クロロホルム、ジクロロメタン等のハロゲン系溶媒、トルエン、キシレン等の芳香族系溶媒、テトラヒドロフラン、メチル−tert−ブチルエーテル等のエーテル系溶媒、酢酸エチル等のエステル系溶媒等が用いられる。
化合物(I)の具体例をリスト1に示す。尚、リスト中の化合物番号は後述する実施例番号に対応する。また、リスト中、Phはフェニル基、Meはメチル基、Prはプロピル基、iPrはイソプロピル基を表す。
【0035】
【表1】
【0036】
【表2】
【0037】
【表3】
【0038】
【表4】
【0039】
【表5】
【0040】
【表6】
【0041】
次に、本発明のスクアリリウム化合物(以下、「本発明の化合物」と表現することもある。)を用いた光記録媒体の構成について記載する。
記録層材料に要求される物性として、光学的特性、熱的特性および耐光性が挙げられる。
光学的特性として、好ましくはDVD−R等の記録再生波長である600〜700nm、より好ましくは630〜690nmに対して短波長側に大きな吸収帯を有し、さらに記録再生波長が上記吸収帯の長波長端近傍にあることが好ましい。これは、記録再生波長である600〜700nmにおいて、上記記録層材料が大きな屈折率および所定の消衰係数を有することを意味する。
【0042】
具体的には、上記吸収帯の長波長端近傍の記録再生波長±5nmの波長領域の光に対して、記録層単層の屈折率nが1.5以上かつ3.0以下でより大きいほうが好ましく、消衰係数kが0.02以上かつ0.3以下の範囲にあることが好ましい。nが1.5以上の場合には、反射率および記録変調度がより高くなり、nが3.0以下の場合には、記録再生波長領域の光で再生エラーが起きにくい。また、kが0.02以上の場合には、記録感度がより良くなり、kが0.3以下の場合には、50%以上の反射率をより得やすい。
また、クロロホルム溶液の状態で測定された最大吸収波長(λmax)は550〜600nmの範囲にあるものが好ましく、さらに、吸光係数が大きいほど屈折率nも大きくとれるため、該最大吸収波長におけるlogε(εはモル吸光係数)は5以上のものが好ましい。
【0043】
さらに、熱的特性として、分解温度が特定の温度範囲にあることが好ましい。具体的には分解温度が350℃以下であるものが好ましく、250〜350℃の範囲にあるものがより好ましい。分解温度が350℃以下であると、記録レーザ光のパワーを強くする必要がなく、250℃以上であると記録安定性の点で好ましい。
さらに、耐光性の点で、繰り返し100万回以上の再生安定性と室内放置下で褪色しない堅牢性があるものが好ましい。
基板形状の好ましい条件は、基板上のトラックピッチが0.7〜0.8μmの範囲にあり、溝幅が半値幅で0.18〜0.40μmの範囲にあることである。
基板は、深さ1,000〜2,500Åの案内溝を有しているのが好ましい。トラックピッチは、0.7〜1.0μmであるのが好ましく、高容量化の用途には0.7〜0.8μmであるのがより好ましい。溝幅は、半値幅で0.18〜0.40μmが好ましい。0.18μm以上では十分なトラッキングエラー信号強度を得やすく、また、0.40μm以下の場合には、記録したときに記録部が横に広がり難く好ましい。
【0044】
1.光記録媒体の構造
本発明の光記録媒体は、通常の追記型光ディスクであるエアーサンドイッチ、または密着貼合わせ構造としてもよく、DVD−R等の追記型光記録媒体の構造としてもよい。
【0045】
2.各層の必要特性および構成材料例
本発明の光記録媒体は、第1基板と第2基板とを記録層を介して接着剤で貼り合わせた構造を基本構造とする。記録層は、本発明の化合物を含む有機色素層単層でもよく、反射率を高めるため有機色素層と金属反射層との積層でもよい。記録層と基板間は下引き層あるいは保護層を介して層成してもよく、機能向上のためそれらを積層化してもよい。好ましい構造の形態としては、第1基板/有機色素層/金属反射層/保護層/接着層/第2基板構造等が挙げられる。
【0046】
a.基板
用いる基板は、基板側より記録再生を行なう場合、使用するレーザ光の波長に対して透明でなければならず、記録層側から記録再生を行なう場合には、基板が透明である必要はない。基板材料としては、例えば、ポリエステル、アクリル樹脂、ポリアミド、ポリカーボネート樹脂、ポリオレフィン樹脂、フェノール樹脂、エポキシ樹脂、ポリイミド等のプラスチック、ガラス、セラミック、または金属等を用いることができる。尚、基板の表面にトラッキング用の案内溝や案内ピット、さらにアドレス信号などのプリフォーマット等が形成されていてもよい。
【0047】
b.記録層
記録層は、レーザ光の照射により何らかの光学的変化を生じ、その変化により情報を記録するものであり、この記録層中には本発明の化合物が含有されていることが必要であって、記録層の形成に当たっては本発明の化合物のうちの1種を単独で、または2種以上を組合わせて用いてもよい。
さらに、本発明の化合物は光学特性、記録感度、信号特性等の向上の目的で他の有機色素、金属または金属化合物と混合または積層化して用いてもよい。有機色素の例としては、ポリメチン色素、ナフタロシアニン系、フタロシアニン系、スクアリリウム系、クロコニウム系、ピリリウム系、ナフトキノン系、アントラキノン系(インダンスレン系)、キサンテン系、トリフェニルメタン系、アズレン系、テトラヒドロコリン系、フェナンスレン系、トリフェノチアジン系染料、および金属錯体化合物等が挙げられる。金属および金属化合物の例としてはIn、Te、Bi、Se、Sb、Ge、Sn、Al、Be、TeO2、SnO、As、Cd等が挙げられ、それぞれを分散混合あるいは積層の形態で用いることができる。
【0048】
さらに本発明の化合物に光安定化剤を混合することにより、耐光性を飛躍的に向上させることが可能である。光安定化剤としては、金属錯体および芳香族アミンが好ましい。具体的な光安定化剤の例は後に記す(リスト2およびリスト3を参照)。
本発明の化合物に対する光安定化剤の混合比は、5〜40重量%が好ましい。5重量%以上では光安定化の効果が高く、40重量%以下であると記録再生特性の点で好ましい。
さらに、本発明の化合物に高分子材料、例えば、アイオノマー樹脂、ポリアミド樹脂、ビニル系樹脂、天然高分子、シリコーン、液状ゴム等の種々の材料もしくはシランカップリング剤等を分散混合してもよいし、特性改良の目的で、添加剤として安定剤(例えば、遷移金属錯体)、分散剤、難燃剤、滑剤、帯電防止剤、界面活性剤、可塑剤等を一緒に用いることもできる。
【0049】
記録層の形成は、蒸着、スパッタリング、CVDまたは溶剤塗布等の通常の手段によって行うことができる。塗布法を用いる場合には、本発明の化合物に必要に応じて前記のごとき添加剤等を加えた染料を、有機溶剤に溶解して、スプレー、ローラーコーティング、ディッピングおよびスピンコーティング等の慣用のコーティング法によって行うことができる。
用いられる有機溶媒としては、一般にメタノール、エタノール、イソプロピルアルコール等のアルコール類、アセトン、メチルエチルケトン、シクロヘキサノン等のケトン類、N,N-ジメチルホルムアミド、N,N-ジメチルアセトアミド等のアミド類、ジメチルスルホキシド等のスルホキシド類、テトラヒドロフラン、ジオキサン、ジエチルエーテル、エチレングリコールモノメチルエーテル等のエーテル類、酢酸メチル、酢酸エチル等のエステル類、クロロホルム、塩化メチレン、ジクロロエタン、四塩化炭素、トリクロロエタン等の脂肪族ハロゲン化炭化水素類、ベンゼン、キシレン、モノクロロベンゼン、ジクロロベンゼン等の芳香族類、メトキシエタノール、エトキシエタノール等のセロソルブ類、ヘキサン、ペンタン、シクロヘキサン、メチルシクロヘキサン等の炭化水素類等が挙げられる。
記録層の膜厚は、好ましくは100Å〜10μm、より好ましくは200Å〜2,000Åである。
以下に、本発明の化合物と併用される光安定化剤の具体例を示す。
1)金属錯体系光安定化剤(リスト2参照)
【0050】
【化11】
【0051】
RaおよびRbは同一または異なって、水素原子、置換基を有していてもよいアルキル基、アリール基または複素環基を表す。
【0052】
【化12】
【0053】
Ra、Rb、RcおよびRdは同一または異なって、水素原子、ハロゲン原子、直接的にまたは2価の連結基を介して間接的に結合するアルキル基、アリール基、環状アルキル基または複素環基を表す。
【0054】
【化13】
【0055】
XはO、SまたはCRaRbを表し、RaおよびRbは同一または異なって、CN、CORc、COORd、CONReRf、SO2Rg、または5員環もしくは6員環を形成するのに必要な原子群を表し、Rc〜Rgは同一または異なって、置換基を有していてもよいアルキル基またはアリール基を表す。
【0056】
【化14】
【0057】
Ra、Rb、RcおよびRdは同一または異なって、水素原子、ハロゲン原子、直接的にまたは2価の連結基を介して間接的に結合するアルキル基、アリール基、環状アルキル基または複素環基を表し、Reは、水素原子、アルキル基、アリール基、アシル基、カルボキシル基、アルコキシカルボニルアルキル基またはスルホ基を表す。
【0058】
【化15】
【0059】
Ra、Rb、RcおよびRdは同一または異なって、水素原子、ハロゲン原子、直接的にまたは2価の連結基を介して間接的に結合するアルキル基、アリール基、環状アルキル基または複素環基を表し、ReおよびRfは同一または異なって、水素原子、アルキル基、アリール基、アシル基、カルボキシル基またはスルホ基を表す。
【0060】
【化16】
【0061】
XはOまたはSを表す。Ra、RbおよびRcは同一または異なって、直接的にまたはオキシ基、チオ基またはアミノ基を介して結合する置換基を有していてもよいアルキル基、アリール基または環状アルキル基を表し、
【0062】
【化17】
【0063】
は、C=C−CまたはC−C=Cを表す。
【0064】
【化18】
【0065】
XはOまたはSを表す。Ra、RbおよびRcは同一または異なって、直接的にまたはオキシ基、チオ基またはアミノ基を介して結合する置換基を有していてもよいアルキル基、アリール基または環状アルキル基を表し、Rdはアルキル基またはアリール基を表し、
【0066】
【化19】
【0067】
は、C=C−CまたはC−C=Cを表す。
【0068】
【化20】
【0069】
RaおよびRbは同一または異なって、水素原子、置換基を有していてもよいアルキル基、アリール基または複素環基を表す。
【0070】
【化21】
【0071】
Ra、Rb、RcおよびRdは同一または異なって、水素原子、ハロゲン原子、直接的にまたは2価の連結基を介して間接的に結合するアルキル基、アリール基、環状アルキル基または複素環基を表す。
【0072】
【化22】
【0073】
Ra、Rb、RcおよびRdは同一または異なって、水素原子、ハロゲン原子、直接的にまたは2価の連結基を介して間接的に結合するアルキル基、アリール基、環状アルキル基または複素環基を表し、Reは、水素原子、アルキル基、アリール基、アシル基、カルボキシル基またはスルホ基を表す。
上記の式(A)〜(J)において、MはNi、Pd、Pt、Cu、Co等の遷移金属を表し、電荷を持って、カチオンと塩を形成してもよく、さらにはMの上下に他の配位子が結合していてもよく、これらの塩も光安定化剤として使用することができる。式(A)〜(J)中のアルキル基、環状アルキル基、アリール基、複素環基等またはこれらの基の置換基としては前記と同様のものが挙げられる。
【0074】
さらに好ましい具体例をリスト2に示す。
【0075】
【表7】
【0076】
2)芳香族アミン系光安定化剤(リスト3参照)
下記の化合物を使用することができる。
【0077】
【化23】
【0078】
[式中、Rg、Rh、RiおよびRjは同一または異なって、それぞれ水素原子、または置換基を有していてもよいアルキル基を表し、Xは酸アニオンを表し、Gは、mが1または2の場合、
【0079】
【化24】
【0080】
(pは1または2である。)であるか、または
mが2の場合、
【化25】
【0081】
を表し、存在するすべての芳香族環は、炭素数1〜6のアルキル基、炭素数1〜6のアルコキシ基、ハロゲン原子または水酸基によって置換されていてもよい。]
さらに好ましい具体例をリスト3に示す。
【0082】
【表8】
【0083】
c.下引き層
下引き層は、(1)接着性の向上、(2)水またはガス等のバリアー、(3)記録層の保存安定性の向上、(4)反射率の向上、(5)溶剤からの基板の保護、(6)案内溝、案内ピット、プレフォーマットの形成等を目的として使用される。(1)の目的に対しては、高分子材料、例えば、アイオノマー樹脂、ポリアミド樹脂、ビニル樹脂、天然樹脂、天然高分子、シリコーン、液状ゴム等の種々の高分子化合物、およびシランカップリング剤等を用いることができ、(2)および(3)の目的に対しては、上記高分子材料以外に無機化合物、例えば、SiO、MgF、SiO2、TiO、ZnO、TiN、SiN等を用いることができ、さらに金属または半金属、例えば、Zn、Cu、Ni、Cr、Ge、Se、Au、Ag、Al等を用いることができる。また、(4)の目的に対しては、金属、例えば、Al、Au、Ag等、または金属光沢を有する有機薄膜、例えば、メチン染料、キサンテン系染料等を用いることができ、(5)および(6)の目的に対しては、紫外線硬化樹脂、熱硬化樹脂、熱可塑性樹脂等を用いることができる。
下引き層の膜厚は、好ましくは0.01〜30μm、より好ましくは0.05〜10μmである。
【0084】
d.金属反射層
金属反射層の材料としては、単体で高反射率の得られる腐食されにくい金属、半金属等が挙げられる。具体例としては、Au、Ag、Cr、Ni、Al、Fe、Sn等が挙げられるが、反射率および生産性の点から、Au、AgおよびAlが最も好ましく、これらの金属または半金属は単独で使用してもよく、あるいは2種の合金として使用してもよい。
膜形成法としては蒸着、スパッタリング等が挙げられ、膜厚としては50〜5,000Åが好ましく、100〜3,000Åであるのがより好ましい。
【0085】
e.保護層、基板面ハードコート層
保護層および基板面ハードコート層は、(1)記録層(反射吸収層)の傷、ホコリ、汚れ等からの保護、(2)記録層(反射吸収層)の保存安定性の向上、(3)反射率の向上等を目的として使用される。これらの目的に対しては、前記下引き層に示した材料を用いることができる。また、無機材料として、SiO、SiO2等を用いることができ、有機材料としては、ポリメチルアクリレート、ポリカーボネート、ポリスチレン、ポリエステル、ビニル樹脂、セルロース、脂肪族炭化水素、天然ゴム、スチレン−ブタジエン、クロロプレンゴム、ワックス、アルキッド、乾性油、ロジン等の熱軟化性樹脂、エポキシ樹脂、フェノール樹脂、ポリウレタン樹脂、メラミン樹脂、ユリア樹脂等の熱硬化性樹脂、ポリエステルアクリレート、エポキシアクリレート、ウレタンアクリレート、シリコーンアクリレート等の紫外線硬化樹脂等が挙げられるが、中でも紫外線硬化樹脂が生産性に優れている点で好ましく使用できる。
保護層または基板面ハードコート層の膜厚は、0.01〜30μmであるのが好ましく、0.05〜10μmであるのがより好ましい。本発明において、前記下引き層、保護層および基板面ハードコート層には、記録層の場合と同様に、安定剤、分散剤、難燃剤、滑剤、帯電防止剤、界面活性剤、可塑剤等を含有させることができる。
【0086】
f.保護基板
保護基板はこの保護基板側からレーザ光を照射する場合、使用レーザ光の波長に対し透明でなくてはならず、単なる保護板として用いる場合、透明性は問わない。使用可能な材料は基板材料と全く同様であり、ポリエステル、アクリル樹脂、ポリアミド、ポリカーボネート樹脂、ポリオレフィン樹脂、フェノール樹脂、エポキシ樹脂、ポリイミド等のプラスチック、ガラス、セラミック、または金属等を用いることができる。
【0087】
g.接着材、接着層
2枚の記録媒体を接着できる材料ならば何でもよく、生産性を考慮すると、紫外線硬化型もしくはホットメルト型接着剤が好ましい。
【0088】
【実施例】
次に本発明を実施例によりさらに具体的に説明するが、本発明は、これらの実施例に限定されるものではない。
【0089】
A.スクアリリウム化合物の合成
実施例1
3,4−ジメトキシ−3−シクロブテン−1,2−ジオン8.95g、1−フェニル−3−プロピルピラゾリン−5−オン12.74gをメタノール150mlに溶かした。この溶液に、炭酸カリウム8.71gを加え、25℃で1時間攪拌した。反応後、析出物を濾取した。得られた固体を炭酸カリウム3gと水130mlとの混合物に加え、50℃で5時間反応させた。反応終了後、1mol/l塩酸水溶液100mlを加え、不溶物を濾取した。得られた固体に、n−ブタノール90ml、トルエン45mlおよび5−クロロ−1,3,3−トリメチル−2−メチレンインドリン9.30gを加え、110℃で5時間処理した。その後、メタノール100mlを加え、80℃で1時間反応させた後、析出物を濾取した。得られた固体に、酢酸エチル175ml、酢酸17.5ml、アルミニウムトリス(エチルアセトアセテート)4.97gを加え、50℃で2時間反応させ、不溶物を濾取することにより13.75gの化合物1を得た。
元素分析(C84H75AlCl3N9O9): 理論値(%) C 67.81,H 5.08,N 8.47
実測値(%) C 67.71,H 4.89,N 8.46
1H NMRδ(CDCl3)ppm: 0.96 (3H, t, J = 7.3 Hz), 1.02 (3H, t, J = 7.4 Hz), 1.04 (3H, t, J = 7.3 Hz), 1.26-1.81 (24H, m), 2.81-3.12 (6H, m), 3.40 (3H, s), 3.44 (6H, m), 5.63 (2H, m), 5.70 (1H, s), 6.86-6.88 (3H, m), 7.02-7.26 (15H, m), 7.83-7.97 (6H, m).
IR(KBr)cm-1: 2958, 1753, 1633, 1081, 794.
【0090】
実施例2
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−イソプロピルピラゾリン−5−オンを用いる以外は実施例1と同様の操作を行い、9.84gの化合物2を得た。
元素分析(C84H75AlCl3N9O9): 理論値(%) C 67.81,H 5.08,N 8.47
実測値(%) C 67.60,H 4.97,N 8.38
1H NMRδ(CDCl3)ppm: 1.22-1.35 (18H, m), 1.37-1.62 (18H, m), 3.38 (3H, m), 3.66-3.89 (3H, m), 5.61 (2H, m), 5.68 (1H, s), 6.85-6.87 (3H, m), 7.00-7.52 (15H, m), 7.86-7.98 (6H, m).
IR(KBr)cm-1: 2966, 1764, 1570, 1085, 793.
【0091】
実施例3
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−メチル−3−プロピルピラゾリン−5−オンを用いる以外は実施例1と同様の操作を行い、3.44gの化合物3を得た。
元素分析(C69H69AlCl3N9O9): 理論値(%) C 63.67,H 5.34,N 9.68
実測値(%) C 63.81,H 5.57,N 9.46
IR(KBr)cm-1: 2960, 1763, 1587, 1099, 798.
【0092】
実施例4
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−メチルピラゾリン−5−オンを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレンインドリンを用いる以外は実施例1と同様の操作を行い、0.68gの化合物4を得た。
元素分析(C78H66AlN9O9): 理論値(%) C 72.04,H 5.12,N 9.69
実測値(%) C 71.95,H 5.11,N 9.42
1H NMRδ(CDCl3)ppm: 1.60 (18H, m), 2.42 (3H, s), 2.52 (3H, s), 2.64 (3H, s), 3.48 (6H, m), 3.58 (3H, m), 5.65 (2H, m), 5.74 (1H, s), 6.97-7.30 (21H, m), 7.82-8.01 (6H, m).
IR(KBr)cm-1: 2964, 1763, 1601, 1095, 798.
【0093】
実施例5
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに3−メチル−1−フェニルピラゾリン−5−オンを用いる以外は実施例1と同様の操作を行い、0.99gの化合物5を得た。
元素分析(C78H63AlCl3N9O9): 理論値(%) C 66.74,H 4.52,N 9.98
実測値(%) C 65.61,H 4.59,N 9.74
1H NMRδ(CDCl3)ppm: 1.64 (18H, m), 2.44 (3H, s), 2.54 (3H, s), 2.62 (3H, s), 3.42 (6H, m), 3.46 (3H, m), 5.60 (2H, m), 5.69 (1H, s), 6.87-6.89 (3H, m), 7.00-7.34 (15H, m), 7.80-7.97 (6H, m).
IR(KBr)cm-1: 2966, 1763, 1600, 1091, 793.
【0094】
実施例6
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−メチル−3−イソプロピルピラゾリン−5−オンを用いる以外は実施例1と同様の操作を行い、0.70gの化合物6を得た。
元素分析(C69H69AlCl3N9O9): 理論値(%) C 63.67,H 5.34,N 9.56
実測値(%) C 63.67,H 5.55,N 9.68
1H NMRδ(CDCl3)ppm: 1.24-1.31 (18H, m), 1.57-1.88 (18H, m), 3.13 (9H, m), 3.45 (3H, m), 3.74-3.81 (3H, m), 5.71 (2H, m), 6.85-6.87 (3H, m), 7.17-7.27 (6H, m).
IR(KBr)cm-1: 2966, 1763, 1610, 1166, 798.
【0095】
実施例7
5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに5−ブロモ−1,3,3−トリメチル−2−メチレンインドリン2.65gを用いる以外は実施例1と同様にして、4.23gの化合物7を得た。
元素分析(C84H75AlBr3N9O9): 理論値(%) C 62.23,H 4.66,N 7.78
実測値(%) C 62.34,H 4.65,N 7.80
1H NMRδ(CDCl3)ppm: 0.94-1.07 (9H, m), 1.56-1.81 (24H, m), 2.81-3.12 (6H, m), 3.39-3.43 (9H, m), 5.63-5.70 (3H, m), 6.81-6.83 (3H, m), 7.01-7.24 (12H, m), 7.38-7.41 (3H, m), 7.82-7.96 (6H, m).
IR(KBr)cm−1: 2960, 1765, 1603, 1074, 1012.
【0096】
実施例8
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに3−メチル−1−(3-メチルフェニル)ピラゾリン−5−オン3.76gを用いる以外は実施例1と同様にして、5.60gの化合物8を得た。
元素分析(C81H69AlCl3N9O9): 理論値(%) C 65.69,H 4.81,N 8.62
実測値(%) C 65.97,H 4.71,N 8.35
IR(KBr)cm−1: 2927, 1763, 1635, 1082, 1009.
【0097】
実施例9
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに3−メチル−1−(4-メチルフェニル)ピラゾリン−5−オン3.76gを用いる以外は実施例1と同様にして、5.97gの化合物9を得た。
元素分析(C81H69AlCl3N9O9): 理論値(%) C 67.56,H 4.81,N 8.72
実測値(%) C 67.29,H 4.71,N 8.50
IR(KBr)cm−1: 2926, 1763, 1635, 1084, 939.
【0098】
実施例10
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(3-メチルフェニル)−3−プロピルピラゾリン−5−オン5.41gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレンインドリン3.59gを用いる以外は実施例1と同様にして、5.09gの化合物10を得た。
元素分析(C87H84AlN9O9): 理論値(%) C 73.24,H 5.93,N 8.84
実測値(%) C 73.18,H 5.78,N 8.78
1H NMRδ(CDCl3)ppm: 0.94-1.04 (9H, m), 1.53-1.78 (24H, m), 2.12-2.24 (9H, m), 2.75-3.11 (6H, m), 3.46 (9H, m), 5.65-5.75 (3H, m), 6.84-6.86 (3H, m), 6.93-7.05 (9H, m), 7.11-7.15 (3H, m), 7.25-7.31 (3H, m), 7.60-7.85 (6H, m).
IR(KBr)cm−1: 2960, 1763, 1635, 1072, 939.
【0099】
実施例11
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(3-メチルフェニル)−3−プロピルピラゾリン−5−オン1.94gを用いる以外は実施例1と同様にして、2.89gの化合物11を得た。
元素分析(C87H81AlCl3N9O9): 理論値(%) C 68.30,H 5.93,N 8.24
実測値(%) C 68.24,H 5.63,N 8.44
1H NMRδ(CDCl3)ppm: 0.94-1.07 (9H, m), 1.39-1.81 (24H, m), 2.14-2.25 (9H, m), 2.77-3.11 (6H, m), 3.42-3.45 (9H, m), 5.60-5.70 (3H, m), 6.84-6.88 (6H, m), 6.99-7.07 (6H, m), 7.23-7.27 (3H, m), 7.59-7.81 (6H, m).
IR(KBr)cm−1: 2960, 1763, 1637, 1072, 941.
【0100】
実施例12
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-メチルフェニル)−3−プロピルピラゾリン−5−オン5.41gを用いる以外は実施例1と同様にして、4.75gの化合物12を得た。
元素分析(C87H81AlCl3N9O9): 理論値(%) C 68.30,H 5.34,N 8.24
実測値(%) C 68.50,H 5.50,N 8.44
1H NMRδ(CDCl3)ppm:. 0.94-1.06 (9H, m), 1.42-1.78 (24H, m), 2.21 (9H, s), 2.81-3.11 (6H, m), 3.38-3.44 (9H, m), 5.62-5.69 (3H, m), 6.85-7.02 (12H, m), 7.23-7.26 (3H, m), 7.66-7.81 (6H, m).
IR(KBr)cm−1: 2960, 1763, 1635, 1074, 937.
【0101】
実施例13
5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン1.40gを用いる以外は実施例1と同様にして、2.61gの化合物13を得た。
元素分析(C96H84AlN9O9): 理論値(%) C 75.13,H 5.52,N 8.21
実測値(%) C 75.37,H 5.43,N 7.98
1H NMRδ(CDCl3)ppm: 0.92-1.04 (9H, m), 1.53-1.95 (24H, m), 2.80-3.30 (6H, m), 3.59-3.66 (9H, m), 5.78-5.92 (3H, m), 6.96-7.29 (12H, m), 7.37-8.24 (21H, m).
IR(KBr)cm−1: 2960, 1763, 1632, 1074.
【0102】
実施例14
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-ブロモフェニル)−3−プロピルピラゾリン−5−オン5.84gを用いる以外は実施例1と同様にして、7.33gの化合物14を得た。
元素分析(C84H72AlBr3Cl3N9O9): 理論値(%) C 58.50,H 4.21,N 7.31
実測値(%) C 58.37,H 4.30,N 7.07
1H NMRδ(CDCl3)ppm: 0.98-1.03 (9H, m), 1.60-1.77 (24H, m), 2.83-3.09 (6H, m), 3.47 (9H, br s), 5.66-5.71 (3H, m), 6.88-6.93 (3H, m), 7.14-7.20 (3H, m), 7.27-7.29 (9H, m), 7.78-7.83 (6H, m).
IR(KBr)cm−1: 2929, 1765, 1070.
【0103】
実施例15
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-ブロモフェニル)−3−プロピルピラゾリン−5−オン5.84gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン―4,5−ベンゾインドリン4.18gを用いる以外は実施例1と同様にして、5.48gの化合物15を得た。
元素分析(C96H81AlBr3N9O9): 理論値(%) C 65.09,H 4.61,N 7.12
実測値(%) C 64.95,H 4.68,N 6.89
1H NMRδ(CDCl3)ppm: 0.96-1.07 (9H, m), 1.48-1.93 (24H, m), 2.87-3.03 (6H, m), 3.61-3.72 (9H, m), 5.90-5.97 (3H, m), 7.15-7.29 (9H, m), 7.31-7.47 (6H, m), 7.58-7.68 (3H, m), 7.81-8.05 (12H, m).
IR(KBr)cm−1: 2929, 1763.
【0104】
実施例16
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-クロロフェニル)−3−メチルピラゾリン−5−オン9.47gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン4.60gを用いる以外は実施例1と同様にして、8.14gの化合物16を得た。
元素分析(C96H81AlCl3N9O9): 理論値(%) C 70.39,H 4.98,N 7.70
実測値(%) C 69.99,H 5.04,N 7.48
1H NMRδ(CDCl3)ppm: 0.96-1.07 (9H, m), 1.51-1.94 (24H, m), 2.86-3.23 (6H, m), 3.61-3.71 (9H, m), 5.88-5.97 (3H, m), 7.00-7.14 (6H, m), 7.20-7.33 (3H, m), 7.40-8.12 (21H, m).
IR(KBr)cm−1: 2931, 1763, 947.
【0105】
実施例17
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1,3−ジフェニルピラゾリン−5−オン15.36gを用いる以外は実施例1と同様にして、14.22gの化合物17を得た。
1H NMRδ(CDCl3)ppm: 1.57 (18H, br s), 3.40 (9H, br s), 5.70 (3H, m), 6.80-6.87 (3H, m), 7.00-7.52 (27H, m), 7.65-7.80 (3H, m), 7.99-8.10 (6H, m).
【0106】
実施例18
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに3−(4-メトキシフェニル)−3−フェニルピラゾリン−5−オン13.31gを用いる以外は実施例1と同様にして、7.30gの化合物18を得た。
1H NMRδ(CDCl3)ppm: 1.58 (18H, br s), 3.39-3.68 (18H, m), 5.68 (3H, m), 6.57-6.86 (9H, m), 7.14-7.27 (9H, m), 7.34-7.45 (6H, m), 7.52-7.70 (6H, m), 7.87-7.90 (6H, m).
【0107】
実施例19
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-クロロフェニル)−3−プロピルピラゾリン−5−オン9.47gを用いる以外は実施例1と同様にして、7.72gの化合物19を得た。
元素分析(C84H72AlCl6N9O9): 理論値(%) C 63.40,H 4.56,N 7.92
実測値(%) C 63.73,H 4.77,N 7.77
1H NMRδ(CDCl3)ppm: 0.96-1.06 (9H, m), 1.60-1.78 (24H, m), 2.81-3.10 (6H, m), 3.47 (9H, br s), 5.65-5.72 (3H, m), 6.88-6.92 (3H, m), 7.04-7.06 (3H, m), 7.12-7.17 (6H, m), 7.26-7.29 (3H, m), 7.82-7.90 (6H, m).
IR(KBr)cm−1: 2962, 1763, 1570, 1074.
【0108】
実施例20
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(3-クロロフェニル)−3−プロピルピラゾリン−5−オン9.47gを用いる以外は実施例1と同様にして、7.72gの化合物20を得た。
元素分析(C84H72AlCl6N9O9): 理論値(%) C 63.40,H 4.56,N 7.92
実測値(%) C 63.73,H 4.62,N 7.82
1H NMRδ(CDCl3)ppm: 0.95-1.05 (9H, m), 1.55-1.78 (24H, m), 2.73-3.07 (6H, m), 3.48-3.62 (9H, m), 5.64-5.73 (3H, m), 6.89-6.91 (3H, m), 7.00-7.19 (9H, m), 7.26-7.28 (3H, m), 7.76-8.10 (6H, m).
IR(KBr)cm−1: 2962, 1763, 1599, 1074.
【0109】
実施例21
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−トリフルオロメチルピラゾリン−5−オン9.12gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン2.01gを用いる以外は実施例1と同様にして、3.87gの化合物21を得た。
元素分析(C90H63AlF9N9O9): 理論値(%) C 67.04,H 3.94,N 7.82
実測値(%) C 67.09,H 3.98,N 7.79
1H NMRδ(CDCl3)ppm: 1.63-2.14 (18H, m), 3.66-3.77 (9H, m), 5.56-6.15 (3H, m), 6.93-7.31 (12H, m), 7.36-7.73 (9H, m), 7.80-8.39 (12H, m).
IR(KBr)cm−1: 2936, 1772, 991.
【0110】
実施例22
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(3-クロロフェニル)−3−プロピルピラゾリン−5−オン5.29gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン4.02gを用いる以外は実施例1と同様にして、7.56gの化合物22を得た。
元素分析(C96H81AlCl3N9O9): 理論値(%) C 70.39,H 4.98,N 7.70
実測値(%) C 70.11,H 5.03,N 7.55
1H NMRδ(CDCl3)ppm: 0.94-1.05 (9H, m), 1.47-2.00 (24H, m), 2.78-3.36 (6H, m), 3.60-3.66 (9H, m), 5.82-5.94 (3H, m), 6.96-7.12 (6H, m), 7.18-7.31 (3H, m), 7.39-7.67 (6H, m), 7.79-8.40 (15H, m).
IR(KBr)cm−1: 2929, 1763, 945.
【0111】
実施例23
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(3-フルオロフェニル)−3−プロピルピラゾリン−5−オン5.28gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン4.62gを用いる以外は実施例1と同様にして、8.94gの化合物23を得た。
元素分析(C96H81AlF3N9O9): 理論値(%) C 72.58,H 5.14,N 7.93
実測値(%) C 72.30,H 5.32,N 7.65
1H NMRδ(CDCl3)ppm: 0.94-1.06 (9H, m), 1.56-1.92 (24H, m), 2.86-3.26 (6H, m), 3.60-3.69 (9H, m), 5.84-5.95 (3H, m), 6.72-6.89 (6H, m), 7.20-7.33 (3H, m), 7.42-7.71 (9H, m), 7.79-8.13 (12H, m).
IR(KBr)cm−1: 2931, 1734, 949.
【0112】
実施例24
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-フルオロフェニル)−3−プロピルピラゾリン−5−オン5.28gを用いる以外は実施例1と同様にして、11.35gの化合物24を得た。
元素分析(C84H72AlF3Cl3N9O9): 理論値(%) C 65.43,H 4.71,N 8.18
実測値(%) C 65.28,H 4.62,N 8.00
1H NMRδ(CDCl3)ppm: 0.96-1.06 (9H, m), 1.60-1.80 (24H, m), 2.82-3.11 (6H, m), 3.47 (9H, br s), 5.64-5.72 (3H, m), 6.75-6.92 (9H, m), 7.07-7.17 (3H, m), 7.25-7.28 (3H, m), 7.80-7.92 (6H, m).
IR(KBr)cm−1: 2962, 1765, 1579, 1074.
【0113】
実施例25
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに3−プロピル−1−(4-トリフルオロメチルフェニル)ピラゾリン−5−オン2.16gを用いる以外は実施例1と同様にして、4.44gの化合物25を得た。
元素分析(C87H72AlCl3F9N9O9): 理論値(%) C 61.76,H 4.29,N 7.45
実測値(%) C 61.51,H 4.42,N 7.20
1H NMRδ(CDCl3)ppm: 0.92-1.03 (9H, m), 1.58-1.74 (24H, m), 2.87-3.08 (6H, m), 3.45-3.49 (9H, m), 5.69 (3H, m), 6.90-6.95 (3H, m), 7.20-7.47 (12H, m), 8.08 (6H, m).
IR(KBr)cm−1: 2962, 1765, 1551, 1065.
【0114】
実施例26
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-クロロフェニル)−3−メチルピラゾリン−5−オン8.35gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン6.64gを用いる以外は実施例1と同様にして、9.51gの化合物26を得た。
元素分析(C90H69AlCl3N9O9): 理論値(%) C 69.56,H 4.48,N 8.11
実測値(%) C 69.65,H 4.40,N 8.27
1H NMRδ(CDCl3)ppm: 1.48-1.82 (18H, m), 2.49-2.71 (9H, m), 3.60-3.69 (9H, m), 5.62-5.91 (3H, m), 7.00-7.48 (18H, m), 7.58-8.08 (12H, m).
IR(KBr)cm−1: 2929, 1732, 945.
【0115】
実施例27
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−(4-フルオロフェニル)−3−メチルピラゾリン−5−オン11.53gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン7.08gを用いる以外は実施例1と同様にして、11.00gの化合物27を得た。
元素分析(C90H69AlCl3F3N9O9): 理論値(%) C 71.85,H 4.62,N 8.38
実測値(%) C 71.92,H 4.94,N 8.10
1H NMRδ(CDCl3)ppm: 1.65-1.92 (18H, m), 2.50-2.78 (9H, m), 3.62-3.70 (9H, m), 5.84-5.94 (3H, m), 6.75-6.91 (6H, m), 7.23-7.33 (3H, m), 7.40-7.67 (6H, m), 7.82-8.10 (15H, m).
IR(KBr)cm−1: 2929, 1736, 945.
【0116】
実施例28
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに3−プロピル−1−(4-トリフルオロメチルフェニル)ピラゾリン−5−オン2.16gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン1.29gを用いる以外は実施例1と同様にして、1.22gの化合物28を得た。
元素分析(C99H81AlF9N9O9): 理論値(%) C 68.39,H 4.70,N 7.25
実測値(%) C 68.68,H 4.89,N 7.05
1H NMRδ(CDCl3)ppm: 0.95-1.08 (9H, m), 1.44-1.93 (24H, m), 2.89-3.30 (6H, m), 3.63-3.72 (9H, m), 5.88-6.00 (3H, m), 7.20-7.52 (15H, m), 7.61-8.30 (15H, m).
IR(KBr)cm−1: 2931, 1765, 947.
【0117】
実施例29
実施例1において、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに5−メトキシ−1,3,3−トリメチル−2−メチレンインドリン1.02gを用いる以外は実施例1と同様にして、1.70gの化合物29を得た。
元素分析(C87H84AlN9O12): 理論値(%) C 70.86,H 5.74,N 8.55
実測値(%) C 70.67,H 5.89,N 8.54
1H NMRδ(CDCl3)ppm: 1.02 (9H, m), 1.24-1.76 (24H, m), 2.80-3.12 (6H, m), 3.44-3.48 (9H, m), 3.67 (9H, m), 5.65 (3H, m), 6.57-6.90 (9H, m), 6.98-7.01 (3H, m), 7.10-7.18 (6H, m), 7.84-8.00 (6H, m).
IR(KBr)cm−1: 2958, 1763, 1016.
【0118】
実施例30
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−トリフルオロメチルピラゾリン−5−オン18.25gを用いる以外は実施例1と同様にして、4.04gの化合物30を得た。
1H NMRδ(CDCl3)ppm: 1.19-1.77 (18H, m), 3.47-3.61 (9H, m), 5.52-6.00 (3H, m), 6.84-7.43 (18H, m), 7.52-8.18 (6H, m).
【0119】
実施例31
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1,3−ジメチルピラゾリン−5−オン11.80gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1,3,3−トリメチル−2−メチレン−4,5−ベンゾインドリン18.25gを用いる以外は実施例1と同様にして、13.65gの化合物31を得た。
1H NMRδ(CDCl3)ppm: 1.78-1.98 (18H, m), 2.54-2.67 (9H, m), 3.33-3.41 (9H, m), 3.56-3.63 (9H, m), 5.80 (3H, m), 7.28 (3H, m), 7.44 (3H, m), 7.63 (3H, m), 7.84-7.96 (9H, m).
【0120】
実施例32
5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに3,3−ジメチル−2−メチレンインドリン1.72gを用いる以外は実施例1と同様にして、2.46gの化合物32を得た。
元素分析(C81H72AlN9O9): 理論値(%) C 72.47,H 5.41,N 9.39
実測値(%) C 72.77,H 5.42,N 9.26
1H NMRδ(CDCl3)ppm: 0.88-1.11 (9H, m), 1.24-1.55 (18H, m), 1.57-1.83 (6H, m), 2.53-3.07 (6H, m), 5.21-5.65 (3H, m), 6.78-7.37 (21H, m), 7.57-8.04 (6H, m), 11.5-12.81 (3H, m).
IR(KBr)cm−1: 2962, 1770, 1013.
【0121】
実施例33
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−トリフルオロメチルピラゾリン−5−オン18.25gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに5−メトキシ−1,3,3−トリメチル−2−メチレンインドリン9.71gを用いる以外は実施例1と同様にして、13.19gの化合物33を得た。
1H NMRδ(CDCl3)ppm: 1.24-1.79 (18H, m), 3.50-3.69 (9H, m), 3.75-3.88 (9H, m), 5.48-5.98 (3H, m), 6.49-7.29 (18H, m), 7.71-8.15 (6H, m).
【0122】
実施例34
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−トリフルオロメチルピラゾリン−5−オン18.25gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに5−メチル−1,3,3,5−テトラメチル−2−メチレンインドリン9.20gを用いる以外は実施例1と同様にして、11.79gの化合物34を得た。
1H NMRδ(CDCl3)ppm: 1.25-1.79 (18H, m), 2.18-2.45 (9H, m), 3.50-3.64 (9H, m), 5.53-6.01 (3H, m), 6.62-7.30 (18H, m), 7.69-8.11 (6H, m).
【0123】
実施例35
1−フェニル−3−プロピルピラゾリン−5−オンの代わりに1−フェニル−3−トリフルオロメチルピラゾリン−5−オン18.25gを用い、5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに1−メチル−2−メチレンインドリン−3−スピロシクロヘキサン10.09gを用いる以外は実施例1と同様にして、12.34gの化合物35を得た。
元素分析(C87H69AlF9N9O9): 理論値(%) C 66.03,H 4.39,N 7.97
実測値(%) C 65.81,H 4.46,N 7.87
1H NMRδ(CDCl3)ppm: 1.35-1.59 (6H, m), 1.68-2.17 (24H, m), 3.84 (9H, m), 5.59-5.92 (3H, m), 7.09 (9H, m), 7.26-7.46 (9H, m), 7.85-8.00 (9H, m).
IR(KBr)cm−1: 2936, 1771, 987.
【0124】
実施例36
5−クロロ−1,3,3−トリメチル−2−メチレンインドリンの代わりに5,7−ジクロロ−1,3,3−トリメチル−2−メチレンインドリン0.56gを用いる以外は実施例1と同様にして、0.70gの化合物36を得た。
元素分析(C84H72AlCl6N9O9): 理論値(%) C 63.40,H 4.56,N 7.92
実測値(%) C 63.18,H 4.46,N 7.82
1H NMRδ(CDCl3)ppm: 0.94-1.08 (9H, m), 1.35-1.82 (24H, m), 2.81-3.13 (6H, m), 3.80 (9H, m), 5.64-5.72 (3H, m), 6.87-7.24 (15H, m), 7.79-7.95 (6H, m).
IR(KBr)cm−1: 2960, 1765, 1070.
【0125】
B.スクアリリウム化合物の特性評価
実施例37
実施例1〜36で得られた化合物のクロロホルム溶液の最大吸収波長(λmax)と最大吸収波長でのモル吸光係数を測定した。その結果をリスト4に示す。
【0126】
実施例38
実施例1〜36で得られた化合物の分解温度を測定した。その結果をリスト4に示す。
【0127】
比較例1
同様に、実施例1〜6で金属錯体化処理前の(金属錯体になっていない)スクアリリウム化合物(化合物1b〜6b)のクロロホルム溶液の最大吸収波長(λmax)、最大吸収波長でのモル吸光係数および分解温度を測定した。その結果をリスト5に示す。
【0128】
【表9】
【0129】
【表10】
【0130】
【表11】
【0131】
実施例39
実施例1〜6で得られた化合物の薄膜の光学定数を測定した。その結果をリスト6に示す。
【0132】
比較例2
同様に、実施例1〜6で金属錯体処理前のスクアリリウム化合物(化合物1b〜6b)の薄膜の光学定数を測定した。その結果をリスト7に示す。
【0133】
【表12】
【0134】
【表13】
【0135】
リスト6および7より、金属錯体化することで大きな屈折率が得られ、有機溶剤に対する溶解性も向上したことが分かる。
【0136】
実施例40
実施例1、2または4で得られた化合物の薄膜にキセノンランプの光(5万ルクス)を照射し、その光学濃度の時間変化から光劣化速度定数を測定した。その結果をリスト8に示す。光劣化速度定数は以下の式で求めた。
d[OD]/dt=k[OD]
[OD]:スクアリリウム化合物薄膜の光学濃度
k :光劣化速度定数
【0137】
比較例3
同様に、実施例1、2または4で金属錯体化処理前のスクアリリウム化合物(化合物1b、2b、4b)の薄膜の光劣化速度定数を測定した。その結果をリスト8に示す。
【0138】
【表14】
【0139】
リスト8より、金属錯体化することで耐光性が向上したことが分かる。
【0140】
C.スクアリリウム化合物を用いた光記録媒体の特性評価
以下に光記録媒体に関する実施例を記載する。
【0141】
実施例41
溝深さ1,750Å、半値幅0.38μm、トラックピッチ0.74μmの案内溝を有する厚さ0.6mmの射出成形ポリカーボネート基板上に化合物1を2,2,3,3-テトラフルオロ-1-プロパノールに溶解した液をスピンナー塗布し、厚さ900Åの有機色素層を形成した。
次いで、スパッタ法により金1,200Åの反射層を設け、さらにその上にアクリル系フォトポリマーにて7μmの保護層を設けた後、厚さ0.6mmの射出成形ポリカーボネート平板基板をアクリル系フォトポリマーにて接着し光記録媒体とした。
得られた光記録媒体に、発振波長658nm、ビーム径1.0μmの半導体レーザ光を用い、トラッキングしながらEFM信号(線速3.5m/秒)を記録し、発振波長658nmの半導体レーザの連続光(再生パワー0.7mW)で再生した。得られた信号特性をリスト9に示す。
【0142】
実施例42〜46
実施例41において、化合物1の代わりに化合物2、3、4、5または6を用い実施例41と全く同様にして光記録媒体を形成し、信号特性を測定した。得られた信号特性をリスト9に示す。
【0143】
【表15】
【0144】
リスト9より本発明の光記録媒体ではDVD−R規格に準拠する高反射率かつ高変調度で低ジッタの信号特性が得られるのが分かる。
【0145】
実施例47
実施例41において、化合物1の代わりに化合物1と金属錯体No.3(リスト2参照;重量比10/3)との混合物を用いて光記録媒体を形成した。
この光記録媒体にキセノンランプ(5万ルクス)を10時間照射し、光学濃度の残存率を評価した。光学濃度残存率は、以下の式で求めた。
光学濃度残存率=Id/I0×100(%)
Id:光照射後の光学濃度
I0:光照射前の光学濃度
得られた耐光性試験結果をリスト10に示す。
【0146】
実施例48〜50
金属錯体No.3の代わりに芳香族アミン系化合物No.104(リスト3参照)(実施例48)を用い、さらに化合物1と金属錯体No.3との混合物の代わりに化合物2と金属錯体No.12(リスト2参照)との混合物(実施例49)または化合物2と芳香族アミン系化合物No.113(リスト3参照)との混合物(実施例50)を用いる以外は実施例47と同様にして光記録媒体を形成した。得られた光記録媒体につき、実施例47と同様の方法で、耐光性試験を行った。耐光性試験の結果をリスト10に示す。
【0147】
【表16】
【0148】
リスト10より本発明の光記録媒体が優れた耐光性を示すことが分かる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a squarylium compound that can be used in the field of optical recording and an optical recording medium using the same.
[0002]
[Prior art]
In recent years, a DVD-R (write-once digital versatile disk) has been developed as a write-once optical recording medium having a higher density than a CD-R (write-once compact disk). Both CD-R and DVD-R are the same in that organic dyes are used as recording materials, and the same applies in principle to signal (information) recording and reproduction. Therefore, with respect to various properties (light resistance, solubility, and thermal decomposability) other than the spectral characteristics required for recording materials, even organic dyes developed for CD-R are basically used as DVD-R recording materials. Satisfy the required requirements. However, the oscillation wavelength of a semiconductor laser used for recording a signal on a DVD-R or reproducing a signal from a DVD-R is 600 to 700 nm, which is the wavelength of the semiconductor laser used in the CD-R. The wavelength is shorter than the oscillation wavelength. Therefore, the recording material used in the DVD-R must have an absorption edge on the long wavelength side in the film state on the short wavelength side as compared with the recording material on the CD-R. Cyanine dyes, azaannulene dyes, indoaniline metal chelate dyes and the like ("Electronics-related dyes" CMC, 1998) developed as materials cannot be used as recording materials for DVD-R.
[0003]
The present inventors have conventionally developed a squarylium compound having two different types of aromatic substituents in the same molecule. These squarylium compounds have a squaric acid skeleton at the center of the molecule and have a structure having substituents composed of aromatic compounds at two carbon atoms located on the diagonal line. When the two aromatic substituents are the same, this is called a symmetric squarylium compound (or symmetric squarylium dye) for convenience, and when it is different, an asymmetric squarylium compound (or asymmetric squarylium dye). It is called.
[0004]
As a known squarylium compound coordinated to a metal to form a chelate structure, there is a symmetrical squarylium compound having an aniline derivative represented by the formula A as an aromatic substituent (Chem. Ber. 103, 3553-3562, 1970).
[0005]
[Chemical 1]
[0006]
However, this compound does not have a structure in which a plurality of squarylium compounds are coordinated to one metal atom, and a nitrogen atom between the aromatic ring and the squaric acid skeleton is involved in coordination.
Further, as a compound having a chelate structure in which a plurality of compounds similar to squarylium are coordinated to a metal atom, there is a compound represented by the formula B (“OXOCARBONS” ACADEMIC PRESS 1980, page 210, By Robert West).
However, in this compound, a substituent on the squaric acid skeleton is substituted from an oxygen atom to a sulfur atom, and a nitrogen atom between the aromatic ring and the squaric acid skeleton is involved in coordination.
[0007]
[Chemical formula 2]
[0008]
Furthermore, as an example in which an atom involved in coordination is used as a substituent of an aromatic ring and a plurality of squarylium compounds form a complex with one metal atom, a complex of a compound represented by Formula C and a metal is known. As a use of this complex, a near infrared absorber or a filter for plasma display is mentioned (Japanese Patent Laid-Open No. 2000-159776).
[0009]
[Chemical Formula 3]
[0010]
(Wherein X and X ′ represent a group having active hydrogen, Y1And Y2Represents a hydrogen atom, an alkylamino group, or the like, and k and k ′ represent an integer of 1 to 4. )
However, in this publication, only the squarylium compound represented by the following formula D is specifically disclosed as the squarylium compound corresponding to formula C, and the complex structure is not specifically shown. .
[0011]
[Formula 4]
[0012]
(Where Z1~ Z6Represents a hydrogen atom, an alkyl group or the like. )
A structure in which a plurality of squarylium compounds are coordinated to one metal atom, and the atoms involved in the coordination are oxygen atoms that are substituents of the squaric acid skeleton and atoms in the substituent of one aromatic ring The squarylium compound possessed is not yet known.
Regarding the spectral characteristics of recording materials that are closely related to signal recording sensitivity and reproduction sensitivity, the maximum absorption wavelength (λmax) measured in the solution state is as follows, considering the oscillation wavelength of the semiconductor laser used in DVD-R. The range of 550 to 600 nm is desirable, and the log ε (ε is the molar extinction coefficient) at the maximum absorption wavelength is desirably 5 or more.
[0013]
Further, regarding the thermal decomposition characteristics of the recording material closely related to the recording sensitivity, it is desired to decompose in the temperature range of 250 to 350 ° C.
In addition, although light resistance or solubility in a solvent necessary for film formation is also required, when a known squarylium compound is used for a DVD-R recording material, the resulting DVD-R recording material has spectral characteristics and light resistance. It is not satisfied in practice from the viewpoints of solubility, solubility and thermal decomposition characteristics. Compound A described above has a melting point of 350 ° C. or higher, Compound C has a maximum absorption wavelength of 830 nm or longer, and there is no data on the physical properties of Compound B.
[0014]
[Problems to be solved by the invention]
An object of the present invention is to provide a squarylium compound having spectral characteristics, light resistance, solubility and thermal decomposition characteristics suitable for a DVD-R recording material, and an optical recording medium using the same.
[0015]
[Means for Solving the Problems]
As a result of repeated studies in view of the above circumstances, the present inventors have found that a squarylium compound having hydroxypyrazole as an aromatic substituent and a metal atom having coordination ability form a chelate complex. Furthermore, the present inventors have found that a compound obtained by forming a chelate complex has favorable characteristics as a recording material for DVD-R. The present invention has been made on the basis of such findings, and has the formula (I)
[0016]
[Chemical formula 5]
[0017]
[Wherein R1And R2Are the same or different and have an alkyl group which may have a substituent, an aralkyl group which may have a substituent, an aryl group which may have a substituent or a substituent. Q represents a metal atom having a coordinating ability; q represents 2 or 3; A represents an aryl group which may have a substituent; Represents an optionally substituted heterocyclic group or Y═CH— (wherein Y represents an optionally substituted aryl group or an optionally substituted heterocyclic group). And an optical recording medium having a recording layer containing the squarylium compound.
[0018]
【The invention's effect】
According to the present invention, it is possible to provide a squarylium compound having spectral characteristics and thermal decomposition characteristics suitable for the oscillation wavelength of a semiconductor laser used in a DVD-R. In addition, by using the squarylium compound obtained in the present invention as an optical recording material, it is possible to provide a DVD-R media having excellent light resistance and high reflectance and modulation.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described. In the present specification, a compound represented by the formula (I) is referred to as a compound (I). The same applies to compounds with other formula numbers.
First, in the definition of each group of formula (I) or formula (II) described later, examples of the alkyl moiety in the alkyl group and the alkoxy group include, for example, a linear or branched alkyl group having 1 to 6 carbon atoms or a carbon number. Specific examples thereof include 3 to 8 cyclic alkyl groups, and specific examples thereof include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, and isopentyl group. Examples thereof include 1-methylbutyl group, 2-methylbutyl group, tert-pentyl group, hexyl group, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group and the like.
[0020]
Examples of the aralkyl group include an aralkyl group having 7 to 15 carbon atoms, and specific examples thereof include a benzyl group, a phenethyl group, a phenylpropyl group, and a naphthylmethyl group.
Examples of the aryl group include a phenyl group, a naphthyl group, an anthryl group, and an azulenyl group.
Examples of the halogen atom include a chlorine atom, a bromine atom, a fluorine atom, and an iodine atom.
[0021]
The substituents for the aralkyl group, aryl group, alkoxy group, aromatic ring, heterocyclic ring or heterocyclic group are the same or different and include 1 to 5 substituents such as a hydroxyl group, a carboxyl group, a halogen atom, and a substituent. Examples thereof include an optionally substituted alkyl group, alkoxy group, nitro group, and optionally substituted amino group. Examples of the halogen atom, alkyl group, and alkoxy group include the same ones as described above.
Examples of the substituent of the alkyl group are the same or different and include 1 to 3 substituents such as a hydroxyl group, a carboxyl group, a halogen atom, and an alkoxy group. Examples of the halogen atom and the alkoxy group include the same ones as described above. Examples of the substituent for the alkyl group include the same substituents for the alkyl group described later.
[0022]
Examples of the substituent of the amino group include one or two alkyl groups which are the same or different, and examples of the alkyl group in this case include the same ones as described above.
Examples of the metal atom having coordination ability include aluminum, zinc, copper, iron, nickel, chromium, cobalt, manganese, iridium, vanadium, titanium, and the like. Among them, trivalent metals [aluminum, iron (III), chromium (III), cobalt (III), manganese (III), iridium (III), vanadium (III), etc.] are preferable, and aluminum is more preferable.
Two adjacent R6Examples of the aromatic ring formed together with two adjacent carbon atoms include a benzene ring, a naphthalene ring, and an anthracene ring.
[0023]
A heterocycle in a heterocyclic group or R3And R4As the heterocyclic ring formed together with adjacent carbon atoms, for example, a 5-membered or 6-membered monocyclic aromatic or aliphatic group containing at least one atom selected from a nitrogen atom, an oxygen atom and a sulfur atom A heterocyclic heterocycle, a condensed bicyclic or tricyclic condensed 3- to 8-membered ring containing at least one atom selected from a nitrogen atom, an oxygen atom and a sulfur atom. More specifically, pyridine ring, pyrazine ring, pyrimidine ring, pyridazine ring, quinoline ring, isoquinoline ring, phthalazine ring, quinazoline ring, quinoxaline ring, naphthyridine ring, cinnoline ring, pyrrole ring, pyrazole ring, imidazole ring, Triazole ring, tetrazole ring, thiophene ring, furan ring, thiazole ring, oxazole ring, indole ring, isoindole ring Indazole ring, benzimidazole ring, benzotriazole ring, benzothiazole ring, benzoxazole ring, purine ring, carbazole ring, pyrrolidine ring, piperidine ring, piperazine ring, morpholine ring, thiomorpholine ring, homopiperidine ring, homopiperazine ring, tetrahydro Examples thereof include a pyridine ring, a tetrahydroquinoline ring, a tetrahydroisoquinoline ring, a tetrahydrofuran ring, a tetrahydropyran ring, a dihydrobenzofuran ring, a tetrahydrocarbazole ring, and an indoline ring.
[0024]
R3And R4Examples of the alicyclic hydrocarbon ring formed together with adjacent carbon atoms include those having 3 to 8 carbon atoms, which may be saturated or unsaturated, such as a cyclopropane ring, Examples include a cyclobutane ring, a cyclopentane ring, a cyclohexane ring, a cycloheptane ring, a cyclooctane ring, a cyclopentene ring, a 1,3-cyclopentadiene ring, a cyclohexene ring, and a cyclohexadiene ring.
In the compound (I), a compound in which Y is an indoline ring which may have a substituent is preferable, and among them, Y = CH- is represented by the general formula (II).
[0025]
[Chemical 6]
[0026]
(Wherein R3And R4Are the same or different and each represents an optionally substituted alkyl group, or R represents3And R4Together with adjacent carbon atoms may form an alicyclic hydrocarbon ring or an optionally substituted heterocycle; R5Represents a hydrogen atom, an alkyl group which may have a substituent, an aralkyl group which may have a substituent or an aryl group which may have a substituent; R6Is a halogen atom, an alkyl group which may have a substituent, an aralkyl group which may have a substituent, an aryl group which may have a substituent, a nitro group, a cyano group or a substituent. Represents an alkoxy group which may have; n represents an integer of 0 to 4;6May be the same or different, and two adjacent Rs6May combine with two adjacent carbon atoms to form an optionally substituted aromatic ring. ) Is more preferable.
Hereafter, the general manufacturing method of compound (I) is demonstrated.
[0027]
[Chemical 7]
Reaction formula (1-a)
[0028]
[Chemical 8]
Reaction formula (1-b)
[0029]
[Chemical 9]
Reaction formula (1-c)
[0030]
Embedded image
Reaction formula (1-d)
(Wherein R1, R2, A, Q and q are as defined above, and Y represents a hydrogen atom, potassium, sodium or the like. )
[0031]
Reaction formula (1-a)
Compound (V) is obtained by reacting compound (III) with 0.7 to 1.5 moles of compound (IV) in the presence of a base, if necessary, in a solvent at 0 to 80 ° C. for 5 minutes to 15 hours. Can be obtained.
As the base, for example, an inorganic base such as potassium carbonate, sodium carbonate or potassium hydroxide, or an organic base such as triethylamine or sodium methoxide is used. The amount of the base used is preferably 0.7 to 1.5 moles compared to Compound (III).
As the solvent, for example, methanol, ethanol, dimethylformamide or the like is used.
[0032]
Reaction formula (1-b)
Compound (VI) can be obtained by treating compound (V) in an alkaline solvent or an acidic solvent at 0 to 80 ° C. for 30 minutes to 15 hours.
As the alkaline solvent, for example, an aqueous potassium carbonate solution, an aqueous sodium carbonate solution, an aqueous potassium hydroxide solution, or the like is used.
As the acidic solvent, for example, a 50% volume / volume dimethylsulfoxide aqueous solution of hydrochloric acid, a 50% volume / volume dimethylformamide aqueous solution of hydrochloric acid, or the like is used.
[0033]
Reaction formula (1-c)
Compound (VII) is compound (VI) and 0.5 to 2 moles of AH, if necessary, in the presence of 0.5 to 2 moles of a base in a solvent at 50 to 120 ° C. It is obtained by reacting for 5 minutes to 15 hours.
Examples of the solvent include alcohol solvents having 2 to 8 carbon atoms such as ethanol, propanol, isopropyl alcohol, butanol and octanol, or a mixed solvent of the alcohol solvent and benzene, toluene or xylene (alcohol solvent 50). And those having a capacity / volume% or more are preferred).
As the base, for example, an organic base such as quinoline, triethylamine, pyridine, or an inorganic base such as potassium carbonate, potassium hydrogen carbonate, sodium hydrogen carbonate, or the like is used.
[0034]
Reaction formula (1-d)
Compound (I) is compound (VII) and Qq +If necessary, it is obtained by reacting in a solvent at room temperature to 120 ° C. for 5 minutes to 15 hours in the presence of 0.5 to 2 times mol of acetic acid. Qq +The raw material which gives is the number of moles of compound (VII): Qq +It is preferable that the ratio of the number of moles of the raw material giving q × q is 1: 0.5 to 2.
Qq +Examples of the raw materials for providing aluminum tris (acetylacetonate), aluminum tris (ethyl acetoacetate), aluminum isopropoxide, aluminum sec-butoxide, aluminum ethoxide, aluminum chloride, copper chloride, copper acetate, nickel acetate, etc. Is used.
Examples of the solvent include halogen solvents such as chloroform and dichloromethane, aromatic solvents such as toluene and xylene, ether solvents such as tetrahydrofuran and methyl tert-butyl ether, and ester solvents such as ethyl acetate.
A specific example of compound (I) is shown in List 1. The compound numbers in the list correspond to the example numbers described later. In the list, Ph is a phenyl group, Me is a methyl group, Pr is a propyl group,iPr represents an isopropyl group.
[0035]
[Table 1]
[0036]
[Table 2]
[0037]
[Table 3]
[0038]
[Table 4]
[0039]
[Table 5]
[0040]
[Table 6]
[0041]
Next, the structure of an optical recording medium using the squarylium compound of the present invention (hereinafter sometimes referred to as “the compound of the present invention”) will be described.
Physical properties required for the recording layer material include optical properties, thermal properties, and light resistance.
As optical characteristics, it preferably has a large absorption band on the short wavelength side with respect to a recording / reproducing wavelength of 600-700 nm, more preferably 630-690 nm for DVD-R, etc. It is preferably near the long wavelength end. This means that the recording layer material has a large refractive index and a predetermined extinction coefficient at a recording / reproducing wavelength of 600 to 700 nm.
[0042]
Specifically, the refractive index n of the recording layer single layer is greater than 1.5 and less than 3.0 with respect to light in the wavelength region of the recording / reproducing wavelength ± 5 nm near the long wavelength end of the absorption band. The extinction coefficient k is preferably in the range of 0.02 or more and 0.3 or less. When n is 1.5 or more, the reflectivity and the recording modulation degree are higher, and when n is 3.0 or less, a reproduction error is hardly caused by light in the recording / reproducing wavelength region. Further, when k is 0.02 or more, the recording sensitivity is improved, and when k is 0.3 or less, it is easier to obtain a reflectance of 50% or more.
Further, the maximum absorption wavelength (λmax) measured in the chloroform solution is preferably in the range of 550 to 600 nm, and the larger the extinction coefficient, the larger the refractive index n. ε is preferably a molar extinction coefficient) of 5 or more.
[0043]
Further, as a thermal characteristic, it is preferable that the decomposition temperature is in a specific temperature range. Specifically, the decomposition temperature is preferably 350 ° C. or lower, and more preferably in the range of 250 to 350 ° C. When the decomposition temperature is 350 ° C. or lower, it is not necessary to increase the power of the recording laser beam, and when it is 250 ° C. or higher, it is preferable from the viewpoint of recording stability.
Furthermore, from the viewpoint of light resistance, those having a reproduction stability of 1,000,000 times or more and fastness that does not deteriorate when left indoors are preferable.
The preferable conditions for the substrate shape are that the track pitch on the substrate is in the range of 0.7 to 0.8 μm, and the groove width is in the range of 0.18 to 0.40 μm in half width.
The substrate preferably has a guide groove having a depth of 1,000 to 2,500 mm. The track pitch is preferably 0.7 to 1.0 [mu] m, and more preferably 0.7 to 0.8 [mu] m for high capacity use. The groove width is preferably 0.18 to 0.40 μm in half width. If it is 0.18 μm or more, it is easy to obtain a sufficient tracking error signal intensity, and if it is 0.40 μm or less, it is preferable that the recording part does not spread laterally when recording.
[0044]
1. Structure of optical recording medium
The optical recording medium of the present invention may be an air sandwich which is a normal write-once optical disk, or a close-bonding structure, or may be a write-once optical recording medium such as a DVD-R.
[0045]
2. Required characteristics of each layer and examples of constituent materials
The optical recording medium of the present invention has a basic structure in which a first substrate and a second substrate are bonded together with an adhesive via a recording layer. The recording layer may be a single organic dye layer containing the compound of the present invention, or may be a laminate of an organic dye layer and a metal reflective layer in order to increase the reflectance. The recording layer and the substrate may be laminated via an undercoat layer or a protective layer, or they may be laminated for improving the function. Examples of a preferable structure include a first substrate / organic dye layer / metal reflective layer / protective layer / adhesive layer / second substrate structure.
[0046]
a. substrate
The substrate to be used must be transparent to the wavelength of the laser beam to be used when recording / reproduction is performed from the substrate side, and the substrate need not be transparent when recording / reproduction is performed from the recording layer side. As the substrate material, for example, plastic such as polyester, acrylic resin, polyamide, polycarbonate resin, polyolefin resin, phenol resin, epoxy resin, polyimide, glass, ceramic, or metal can be used. A tracking guide groove and guide pit, and a preformat such as an address signal may be formed on the surface of the substrate.
[0047]
b. Recording layer
The recording layer is an optical change caused by laser light irradiation, and information is recorded by the change. The recording layer must contain the compound of the present invention. In forming the layer, one of the compounds of the present invention may be used alone or in combination of two or more.
Furthermore, the compound of the present invention may be used by mixing or laminating with other organic dyes, metals or metal compounds for the purpose of improving optical characteristics, recording sensitivity, signal characteristics and the like. Examples of organic dyes include polymethine dyes, naphthalocyanine, phthalocyanine, squarylium, croconium, pyrylium, naphthoquinone, anthraquinone (indanthrene), xanthene, triphenylmethane, azulene, tetrahydro Examples thereof include choline-based, phenanthrene-based, triphenothiazine-based dyes, and metal complex compounds. Examples of metals and metal compounds include In, Te, Bi, Se, Sb, Ge, Sn, Al, Be, TeO2, SnO, As, Cd, etc., each of which can be used in the form of dispersion mixing or lamination. it can.
[0048]
Furthermore, it is possible to drastically improve the light resistance by mixing a light stabilizer with the compound of the present invention. As the light stabilizer, metal complexes and aromatic amines are preferred. Examples of specific light stabilizers will be described later (see List 2 and List 3).
The mixing ratio of the light stabilizer to the compound of the present invention is preferably 5 to 40% by weight. If it is 5% by weight or more, the light stabilization effect is high, and if it is 40% by weight or less, it is preferable from the viewpoint of recording / reproducing characteristics.
Further, various materials such as ionomer resin, polyamide resin, vinyl resin, natural polymer, silicone, liquid rubber or silane coupling agent may be dispersed and mixed with the compound of the present invention. For the purpose of improving characteristics, stabilizers (for example, transition metal complexes), dispersants, flame retardants, lubricants, antistatic agents, surfactants, plasticizers, and the like can be used together as additives.
[0049]
The recording layer can be formed by ordinary means such as vapor deposition, sputtering, CVD or solvent coating. When using the coating method, a dye obtained by adding the above-mentioned additives as necessary to the compound of the present invention is dissolved in an organic solvent, and a conventional coating such as spraying, roller coating, dipping and spin coating is used. Can be done by law.
As the organic solvent to be used, alcohols such as methanol, ethanol and isopropyl alcohol, ketones such as acetone, methyl ethyl ketone and cyclohexanone, amides such as N, N-dimethylformamide and N, N-dimethylacetamide, dimethyl sulfoxide and the like Sulfoxides, ethers such as tetrahydrofuran, dioxane, diethyl ether and ethylene glycol monomethyl ether, esters such as methyl acetate and ethyl acetate, aliphatic halogenated hydrocarbons such as chloroform, methylene chloride, dichloroethane, carbon tetrachloride and trichloroethane , Aromatics such as benzene, xylene, monochlorobenzene and dichlorobenzene, cellosolves such as methoxyethanol and ethoxyethanol, hexane, pentane and cyclohexa And hydrocarbons such as methylcyclohexane and the like.
The film thickness of the recording layer is preferably 100 to 10 μm, more preferably 200 to 2,000 mm.
Specific examples of the light stabilizer used in combination with the compound of the present invention are shown below.
1) Metal complex light stabilizer (see list 2)
[0050]
Embedded image
[0051]
R a and R b are the same or different and each represents a hydrogen atom, an optionally substituted alkyl group, an aryl group or a heterocyclic group.
[0052]
Embedded image
[0053]
Ra, Rb, Rc and Rd are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cyclic alkyl group or a heterocyclic group bonded directly or indirectly via a divalent linking group. To express.
[0054]
Embedded image
[0055]
X represents O, S, or CRaRb, and Ra and Rb are the same or different and represent CN, CORc, COORd, CONReRf, SO2Rg, or an atomic group necessary to form a 5-membered or 6-membered ring, and Rc ~ Rg are the same or different and each represents an optionally substituted alkyl group or aryl group.
[0056]
Embedded image
[0057]
Ra, Rb, Rc and Rd are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cyclic alkyl group or a heterocyclic group bonded directly or indirectly via a divalent linking group. Re represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, a carboxyl group, an alkoxycarbonylalkyl group or a sulfo group.
[0058]
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[0059]
Ra, Rb, Rc and Rd are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cyclic alkyl group or a heterocyclic group bonded directly or indirectly through a divalent linking group. And Re and Rf are the same or different and each represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, a carboxyl group or a sulfo group.
[0060]
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[0061]
X represents O or S. Ra, Rb and Rc are the same or different and each represents an alkyl group, an aryl group or a cyclic alkyl group which may have a substituent bonded directly or via an oxy group, a thio group or an amino group;
[0062]
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[0063]
Represents C═C—C or C—C═C.
[0064]
Embedded image
[0065]
X represents O or S. Ra, Rb and Rc are the same or different and each represents an alkyl group, an aryl group or a cyclic alkyl group which may have a substituent bonded directly or via an oxy group, a thio group or an amino group, and Rd Represents an alkyl group or an aryl group,
[0066]
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[0067]
Represents C═C—C or C—C═C.
[0068]
Embedded image
[0069]
R a and R b are the same or different and each represents a hydrogen atom, an optionally substituted alkyl group, an aryl group or a heterocyclic group.
[0070]
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[0071]
Ra, Rb, Rc and Rd are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cyclic alkyl group or a heterocyclic group bonded directly or indirectly through a divalent linking group. To express.
[0072]
Embedded image
[0073]
Ra, Rb, Rc and Rd are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cyclic alkyl group or a heterocyclic group bonded directly or indirectly through a divalent linking group. And Re represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, a carboxyl group or a sulfo group.
In the above formulas (A) to (J), M represents a transition metal such as Ni, Pd, Pt, Cu, and Co, and may form a salt with a cation with a charge. Other ligands may be bound to these salts, and these salts can also be used as light stabilizers. Examples of the alkyl group, the cyclic alkyl group, the aryl group, the heterocyclic group, etc. in the formulas (A) to (J) or the substituents of these groups are the same as those described above.
[0074]
A more preferred specific example is shown in List 2.
[0075]
[Table 7]
[0076]
2) Aromatic amine light stabilizer (see List 3)
The following compounds can be used.
[0077]
Embedded image
[0078]
[Wherein Rg, Rh, Ri and Rj are the same or different and each represents a hydrogen atom or an optionally substituted alkyl group, X represents an acid anion, and G represents 1 or In case of 2,
[0079]
Embedded image
[0080]
(P is 1 or 2), or
If m is 2,
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[0081]
And all the existing aromatic rings may be substituted by an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a halogen atom, or a hydroxyl group. ]
A more preferable specific example is shown in List 3.
[0082]
[Table 8]
[0083]
c. Subbing layer
The undercoat layer consists of (1) improved adhesion, (2) a barrier such as water or gas, (3) improved storage stability of the recording layer, (4) improved reflectance, and (5) a substrate from a solvent. And (6) formation of guide grooves, guide pits, preformats, and the like. For the purpose of (1), polymer materials such as ionomer resins, polyamide resins, vinyl resins, natural resins, natural polymers, silicones, various polymer compounds such as liquid rubber, silane coupling agents, etc. For the purposes of (2) and (3), inorganic compounds such as SiO, MgF, SiO2, TiO, ZnO, TiN, SiN, etc. can be used in addition to the polymer material. Furthermore, metals or semi-metals such as Zn, Cu, Ni, Cr, Ge, Se, Au, Ag, Al, etc. can be used. For the purpose of (4), a metal, for example, Al, Au, Ag, or the like, or an organic thin film having a metallic luster, for example, a methine dye, a xanthene dye, or the like can be used. For the purpose of (6), an ultraviolet curable resin, a thermosetting resin, a thermoplastic resin, or the like can be used.
The thickness of the undercoat layer is preferably 0.01 to 30 μm, more preferably 0.05 to 10 μm.
[0084]
d. Metal reflective layer
Examples of the material for the metal reflection layer include a metal, a semi-metal, and the like that are obtained as a single substance and have high reflectivity and are not easily corroded. Specific examples include Au, Ag, Cr, Ni, Al, Fe, Sn, etc., but Au, Ag, and Al are most preferable from the viewpoint of reflectivity and productivity, and these metals or metalloids are used alone. Or may be used as two alloys.
Examples of the film forming method include vapor deposition and sputtering, and the film thickness is preferably 50 to 5,000 mm, and more preferably 100 to 3,000 mm.
[0085]
e. Protective layer, substrate side hard coat layer
The protective layer and the hard coat layer on the substrate surface are (1) protection from scratches, dust and dirt on the recording layer (reflection absorption layer), (2) improvement in storage stability of the recording layer (reflection absorption layer), (3 ) Used for the purpose of improving the reflectance. For these purposes, the materials shown in the undercoat layer can be used. In addition, SiO, SiO2 or the like can be used as the inorganic material, and the organic material includes polymethyl acrylate, polycarbonate, polystyrene, polyester, vinyl resin, cellulose, aliphatic hydrocarbon, natural rubber, styrene-butadiene, chloroprene rubber. Thermosetting resins such as wax, alkyd, drying oil, rosin, epoxy resin, phenol resin, polyurethane resin, melamine resin, urea resin, polyester acrylate, epoxy acrylate, urethane acrylate, silicone acrylate, etc. Examples of the ultraviolet curable resin include ultraviolet curable resins. Among them, the ultraviolet curable resin can be preferably used because it is excellent in productivity.
The thickness of the protective layer or the substrate hard coat layer is preferably 0.01 to 30 μm, and more preferably 0.05 to 10 μm. In the present invention, the undercoat layer, the protective layer, and the substrate surface hard coat layer, as in the recording layer, include a stabilizer, a dispersant, a flame retardant, a lubricant, an antistatic agent, a surfactant, a plasticizer, and the like. Can be contained.
[0086]
f. Protective board
When the protective substrate is irradiated with laser light from the protective substrate side, the protective substrate must be transparent with respect to the wavelength of the used laser light, and when used as a simple protective plate, transparency is not an issue. The material that can be used is exactly the same as that of the substrate material, and plastic such as polyester, acrylic resin, polyamide, polycarbonate resin, polyolefin resin, phenol resin, epoxy resin, polyimide, glass, ceramic, or metal can be used.
[0087]
g. Adhesive, adhesive layer
Any material can be used as long as it can bond two recording media, and in view of productivity, an ultraviolet curable adhesive or a hot melt adhesive is preferable.
[0088]
【Example】
EXAMPLES Next, although an Example demonstrates this invention further more concretely, this invention is not limited to these Examples.
[0089]
A. Synthesis of squarylium compounds
Example 1
3.95 g of 3,4-dimethoxy-3-cyclobutene-1,2-dione and 12.74 g of 1-phenyl-3-propylpyrazolin-5-one were dissolved in 150 ml of methanol. To this solution, 8.71 g of potassium carbonate was added and stirred at 25 ° C. for 1 hour. After the reaction, the precipitate was collected by filtration. The obtained solid was added to a mixture of 3 g of potassium carbonate and 130 ml of water, and reacted at 50 ° C. for 5 hours. After completion of the reaction, 100 ml of 1 mol / l hydrochloric acid aqueous solution was added, and insoluble matters were collected by filtration. To the obtained solid, 90 ml of n-butanol, 45 ml of toluene and 9.30 g of 5-chloro-1,3,3-trimethyl-2-methyleneindoline were added and treated at 110 ° C. for 5 hours. Thereafter, 100 ml of methanol was added and reacted at 80 ° C. for 1 hour, and then the precipitate was collected by filtration. To the obtained solid was added 175 ml of ethyl acetate, 17.5 ml of acetic acid and 4.97 g of aluminum tris (ethylacetoacetate), reacted at 50 ° C. for 2 hours, and 13.75 g of compound 1 was collected by filtering the insoluble matter. Got.
Elemental analysis (C84H75AlClThreeN9O9): Theoretical value (%) C 67.81, H 5.08, N 8.47
Actual value (%) C 67.71, H 4.89, N 8.46
1H NMRδ (CDClThree) Ppm: 0.96 (3H, t, J = 7.3 Hz), 1.02 (3H, t, J = 7.4 Hz), 1.04 (3H, t, J = 7.3 Hz), 1.26-1.81 (24H, m), 2.81- 3.12 (6H, m), 3.40 (3H, s), 3.44 (6H, m), 5.63 (2H, m), 5.70 (1H, s), 6.86-6.88 (3H, m), 7.02-7.26 (15H, m), 7.83-7.97 (6H, m).
IR (KBr) cm-1: 2958, 1753, 1633, 1081, 794.
[0090]
Example 2
The same operation as in Example 1 was carried out except that 1-phenyl-3-isopropylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, and 9.84 g of compound 2 was obtained. Obtained.
Elemental analysis (C84H75AlClThreeN9O9): Theoretical value (%) C 67.81, H 5.08, N 8.47
Actual value (%) C 67.60, H 4.97, N 8.38
1H NMRδ (CDClThree) Ppm: 1.22-1.35 (18H, m), 1.37-1.62 (18H, m), 3.38 (3H, m), 3.66-3.89 (3H, m), 5.61 (2H, m), 5.68 (1H, s) , 6.85-6.87 (3H, m), 7.00-7.52 (15H, m), 7.86-7.98 (6H, m).
IR (KBr) cm-1: 2966, 1764, 1570, 1085, 793.
[0091]
Example 3
The same procedure as in Example 1 was carried out, except that 1-methyl-3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, and 3.44 g of compound 3 was obtained. Obtained.
Elemental analysis (C69H69AlClThreeN9O9): Theoretical value (%) C 63.67, H 5.34, N 9.68
Actual value (%) C 63.81, H 5.57, N 9.46
IR (KBr) cm-1: 2960, 1763, 1587, 1099, 798.
[0092]
Example 4
1-phenyl-3-methylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one and 1 instead of 5-chloro-1,3,3-trimethyl-2-methyleneindoline , 3,3-trimethyl-2-methyleneindoline was used in the same manner as in Example 1 to obtain 0.68 g of Compound 4.
Elemental analysis (C78H66AlN9O9): Theoretical value (%) C 72.04, H 5.12, N 9.69
Actual value (%) C 71.95, H 5.11, N 9.42
1H NMRδ (CDClThree) Ppm: 1.60 (18H, m), 2.42 (3H, s), 2.52 (3H, s), 2.64 (3H, s), 3.48 (6H, m), 3.58 (3H, m), 5.65 (2H, m ), 5.74 (1H, s), 6.97-7.30 (21H, m), 7.82-8.01 (6H, m).
IR (KBr) cm-1: 2964, 1763, 1601, 1095, 798.
[0093]
Example 5
The same operation as in Example 1 was carried out except that 3-methyl-1-phenylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, and 0.99 g of compound 5 was obtained. Obtained.
Elemental analysis (C78H63AlClThreeN9O9): Theoretical value (%) C 66.74, H 4.52, N 9.98
Actual value (%) C 65.61, H 4.59, N 9.74
1H NMRδ (CDClThree) Ppm: 1.64 (18H, m), 2.44 (3H, s), 2.54 (3H, s), 2.62 (3H, s), 3.42 (6H, m), 3.46 (3H, m), 5.60 (2H, m ), 5.69 (1H, s), 6.87-6.89 (3H, m), 7.00-7.34 (15H, m), 7.80-7.97 (6H, m).
IR (KBr) cm-1: 2966, 1763, 1600, 1091, 793.
[0094]
Example 6
The same procedure as in Example 1 was conducted, except that 1-methyl-3-isopropylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, and 0.70 g of compound 6 was obtained. Obtained.
Elemental analysis (C69H69AlClThreeN9O9): Theoretical value (%) C 63.67, H 5.34, N 9.56
Actual value (%) C 63.67, H 5.55, N 9.68
1H NMRδ (CDClThree) Ppm: 1.24-1.31 (18H, m), 1.57-1.88 (18H, m), 3.13 (9H, m), 3.45 (3H, m), 3.74-3.81 (3H, m), 5.71 (2H, m) , 6.85-6.87 (3H, m), 7.17-7.27 (6H, m).
IR (KBr) cm-1: 2966, 1763, 1610, 1166, 798.
[0095]
Example 7
As in Example 1, except that 2.65 g of 5-bromo-1,3,3-trimethyl-2-methyleneindoline was used in place of 5-chloro-1,3,3-trimethyl-2-methyleneindoline, 4.23 g of compound 7 was obtained.
Elemental analysis (C84H75AlBrThreeN9O9): Theoretical value (%) C 62.23, H 4.66, N 7.78
Actual value (%) C 62.34, H 4.65, N 7.80
1H NMRδ (CDCl3) Ppm: 0.94-1.07 (9H, m), 1.56-1.81 (24H, m), 2.81-3.12 (6H, m), 3.39-3.43 (9H, m), 5.63-5.70 (3H, m), 6.81- 6.83 (3H, m), 7.01-7.24 (12H, m), 7.38-7.41 (3H, m), 7.82-7.96 (6H, m).
IR (KBr) cm-1: 2960, 1765, 1603, 1074, 1012.
[0096]
Example 8
As in Example 1, except that 3.76 g of 3-methyl-1- (3-methylphenyl) pyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. 60 g of compound 8 was obtained.
Elemental analysis (C81H69AlClThreeN9O9): Theoretical value (%) C 65.69, H 4.81, N 8.62
Actual value (%) C 65.97, H 4.71, N 8.35
IR (KBr) cm-1: 2927, 1763, 1635, 1082, 1009.
[0097]
Example 9
In the same manner as in Example 1, except that 3.76 g of 3-methyl-1- (4-methylphenyl) pyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, 97 g of compound 9 was obtained.
Elemental analysis (C81H69AlClThreeN9O9): Theoretical value (%) C 67.56, H 4.81, N 8.72
Actual value (%) C 67.29, H 4.71, N 8.50
IR (KBr) cm-1: 2926, 1763, 1635, 1084, 939.
[0098]
Example 10
Using 5-41 g of 1- (3-methylphenyl) -3-propylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3- 5.09 g of compound 10 was obtained in the same manner as in Example 1 except that 3.59 g of 1,3,3-trimethyl-2-methyleneindoline was used instead of trimethyl-2-methyleneindoline.
Elemental analysis (C87H84AlN9O9): Theoretical value (%) C 73.24, H 5.93, N 8.84
Actual value (%) C 73.18, H 5.78, N 8.78
1H NMRδ (CDCl3) Ppm: 0.94-1.04 (9H, m), 1.53-1.78 (24H, m), 2.12-2.24 (9H, m), 2.75-3.11 (6H, m), 3.46 (9H, m), 5.65-5.75 ( 3H, m), 6.84-6.86 (3H, m), 6.93-7.05 (9H, m), 7.11-7.15 (3H, m), 7.25-7.31 (3H, m), 7.60-7.85 (6H, m).
IR (KBr) cm-1: 2960, 1763, 1635, 1072, 939.
[0099]
Example 11
Similar to Example 1 except that 1.94 g of 1- (3-methylphenyl) -3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. 89 g of compound 11 was obtained.
Elemental analysis (C87H81AlClThreeN9O9): Theoretical value (%) C 68.30, H 5.93, N 8.24
Actual value (%) C 68.24, H 5.63, N 8.44
1H NMRδ (CDCl3) Ppm: 0.94-1.07 (9H, m), 1.39-1.81 (24H, m), 2.14-2.25 (9H, m), 2.77-3.11 (6H, m), 3.42-3.45 (9H, m), 5.60- 5.70 (3H, m), 6.84-6.88 (6H, m), 6.99-7.07 (6H, m), 7.23-7.27 (3H, m), 7.59-7.81 (6H, m).
IR (KBr) cm-1: 2960, 1763, 1637, 1072, 941.
[0100]
Example 12
The same procedure as in Example 1 was repeated except that 5.41 g of 1- (4-methylphenyl) -3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. .75 g of compound 12 was obtained.
Elemental analysis (C87H81AlClThreeN9O9): Theoretical value (%) C 68.30, H 5.34, N 8.24
Actual value (%) C 68.50, H 5.50, N 8.44
1H NMRδ (CDCl3) Ppm: 0.94-1.06 (9H, m), 1.42-1.78 (24H, m), 2.21 (9H, s), 2.81-3.11 (6H, m), 3.38-3.44 (9H, m), 5.62-5.69 (3H, m), 6.85-7.02 (12H, m), 7.23-7.26 (3H, m), 7.66-7.81 (6H, m).
IR (KBr) cm-1: 2960, 1763, 1635, 1074, 937.
[0101]
Example 13
Example 1 was repeated except that 1.40 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of 5-chloro-1,3,3-trimethyl-2-methyleneindoline. As a result, 2.61 g of Compound 13 was obtained.
Elemental analysis (C96H84AlN9O9): Theoretical value (%) C 75.13, H 5.52, N 8.21
Actual value (%) C 75.37, H 5.43, N 7.98
1H NMRδ (CDCl3) Ppm: 0.92-1.04 (9H, m), 1.53-1.95 (24H, m), 2.80-3.30 (6H, m), 3.59-3.66 (9H, m), 5.78-5.92 (3H, m), 6.96- 7.29 (12H, m), 7.37-8.24 (21H, m).
IR (KBr) cm-1: 2960, 1763, 1632, 1074.
[0102]
Example 14
In the same manner as in Example 1, except that 5.84 g of 1- (4-bromophenyl) -3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, 7 .33 g of compound 14 was obtained.
Elemental analysis (C84H72AlBrThreeClThreeN9O9): Theoretical value (%) C 58.50, H 4.21, N 7.31
Actual value (%) C 58.37, H 4.30, N 7.07
1H NMRδ (CDCl3) Ppm: 0.98-1.03 (9H, m), 1.60-1.77 (24H, m), 2.83-3.09 (6H, m), 3.47 (9H, br s), 5.66-5.71 (3H, m), 6.88-6.93 (3H, m), 7.14-7.20 (3H, m), 7.27-7.29 (9H, m), 7.78-7.83 (6H, m).
IR (KBr) cm-1: 2929, 1765, 1070.
[0103]
Example 15
Substituting 5.84 g of 1- (4-bromophenyl) -3-propylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3- 5.48 g of compound 15 was obtained in the same manner as in Example 1 except that 4.18 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of trimethyl-2-methyleneindoline. It was.
Elemental analysis (C96H81AlBrThreeN9O9): Theoretical value (%) C 65.09, H 4.61, N 7.12
Actual value (%) C 64.95, H 4.68, N 6.89
1H NMRδ (CDCl3) Ppm: 0.96-1.07 (9H, m), 1.48-1.93 (24H, m), 2.87-3.03 (6H, m), 3.61-3.72 (9H, m), 5.90-5.97 (3H, m), 7.15- 7.29 (9H, m), 7.31-7.47 (6H, m), 7.58-7.68 (3H, m), 7.81-8.05 (12H, m).
IR (KBr) cm-1: 2929, 1763.
[0104]
Example 16
Using 9.47 g of 1- (4-chlorophenyl) -3-methylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl-2 -8.14 g of compound 16 was obtained in the same manner as in Example 1, except that 4.60 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of methyleneindoline.
Elemental analysis (C96H81AlClThreeN9O9): Theoretical value (%) C 70.39, H 4.98, N 7.70
Actual value (%) C 69.99, H 5.04, N 7.48
1H NMRδ (CDCl3) Ppm: 0.96-1.07 (9H, m), 1.51-1.94 (24H, m), 2.86-3.23 (6H, m), 3.61-3.71 (9H, m), 5.88-5.97 (3H, m), 7.00- 7.14 (6H, m), 7.20-7.33 (3H, m), 7.40-8.12 (21H, m).
IR (KBr) cm-1: 2931, 1763, 947.
[0105]
Example 17
14.22 g of compound 17 was obtained in the same manner as in Example 1 except that 15.36 g of 1,3-diphenylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. It was.
1H NMRδ (CDCl3) Ppm: 1.57 (18H, br s), 3.40 (9H, br s), 5.70 (3H, m), 6.80-6.87 (3H, m), 7.00-7.52 (27H, m), 7.65-7.80 (3H, m), 7.99-8.10 (6H, m).
[0106]
Example 18
In the same manner as in Example 1, except that 13.31 g of 3- (4-methoxyphenyl) -3-phenylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, 7 30 g of compound 18 was obtained.
1H NMRδ (CDCl3) Ppm: 1.58 (18H, br s), 3.39-3.68 (18H, m), 5.68 (3H, m), 6.57-6.86 (9H, m), 7.14-7.27 (9H, m), 7.34-7.45 (6H) , m), 7.52-7.70 (6H, m), 7.87-7.90 (6H, m).
[0107]
Example 19
6. In the same manner as in Example 1 except that 9.47 g of 1- (4-chlorophenyl) -3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. 72 g of compound 19 was obtained.
Elemental analysis (C84H72AlCl6N9O9): Theoretical value (%) C 63.40, H 4.56, N 7.92
Actual value (%) C 63.73, H 4.77, N 7.77
1H NMRδ (CDCl3) Ppm: 0.96-1.06 (9H, m), 1.60-1.78 (24H, m), 2.81-3.10 (6H, m), 3.47 (9H, br s), 5.65-5.72 (3H, m), 6.88-6.92 (3H, m), 7.04-7.06 (3H, m), 7.12-7.17 (6H, m), 7.26-7.29 (3H, m), 7.82-7.90 (6H, m).
IR (KBr) cm-1: 2962, 1763, 1570, 1074.
[0108]
Example 20
6. In the same manner as in Example 1 except that 9.47 g of 1- (3-chlorophenyl) -3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. 72 g of compound 20 was obtained.
Elemental analysis (C84H72AlCl6N9O9): Theoretical value (%) C 63.40, H 4.56, N 7.92
Actual value (%) C 63.73, H 4.62, N 7.82
1H NMRδ (CDCl3) Ppm: 0.95-1.05 (9H, m), 1.55-1.78 (24H, m), 2.73-3.07 (6H, m), 3.48-3.62 (9H, m), 5.64-5.73 (3H, m), 6.89- 6.91 (3H, m), 7.00-7.19 (9H, m), 7.26-7.28 (3H, m), 7.76-8.10 (6H, m).
IR (KBr) cm-1: 2962, 1763, 1599, 1074.
[0109]
Example 21
Substituting 9.12 g of 1-phenyl-3-trifluoromethylpyrazolin-5-one for 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl-2 -3.87 g of compound 21 was obtained in the same manner as in Example 1 except that 2.03 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of methyleneindoline.
Elemental analysis (C90H63AlF9N9O9): Theoretical value (%) C 67.04, H 3.94, N 7.82
Actual value (%) C 67.09, H 3.98, N 7.79
1H NMRδ (CDCl3) Ppm: 1.63-2.14 (18H, m), 3.66-3.77 (9H, m), 5.56-6.15 (3H, m), 6.93-7.31 (12H, m), 7.36-7.73 (9H, m), 7.80- 8.39 (12H, m).
IR (KBr) cm-1: 2936, 1772, 991.
[0110]
Example 22
Instead of 1-phenyl-3-propylpyrazolin-5-one, 5.29 g of 1- (3-chlorophenyl) -3-propylpyrazolin-5-one was used and 5-chloro-1,3,3-trimethyl 7.56 g of compound 22 was obtained in the same manner as in Example 1 except that 4.02 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of 2-methyleneindoline. .
Elemental analysis (C96H81AlClThreeN9O9): Theoretical value (%) C 70.39, H 4.98, N 7.70
Actual value (%) C 70.11, H 5.03, N 7.55
1H NMRδ (CDCl3) Ppm: 0.94-1.05 (9H, m), 1.47-2.00 (24H, m), 2.78-3.36 (6H, m), 3.60-3.66 (9H, m), 5.82-5.94 (3H, m), 6.96- 7.12 (6H, m), 7.18-7.31 (3H, m), 7.39-7.67 (6H, m), 7.79-8.40 (15H, m).
IR (KBr) cm-1: 2929, 1763, 945.
[0111]
Example 23
Substituting 5.28 g of 1- (3-fluorophenyl) -3-propylpyrazolin-5-one for 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3- 8.94 g of compound 23 was obtained in the same manner as in Example 1 except that 4.62 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of trimethyl-2-methyleneindoline. It was.
Elemental analysis (C96H81AlFThreeN9O9): Theoretical value (%) C 72.58, H 5.14, N 7.93
Actual value (%) C 72.30, H 5.32, N 7.65
1H NMRδ (CDCl3) Ppm: 0.94-1.06 (9H, m), 1.56-1.92 (24H, m), 2.86-3.26 (6H, m), 3.60-3.69 (9H, m), 5.84-5.95 (3H, m), 6.72- 6.89 (6H, m), 7.20-7.33 (3H, m), 7.42-7.71 (9H, m), 7.79-8.13 (12H, m).
IR (KBr) cm-1: 2931, 1734, 949.
[0112]
Example 24
11 In the same manner as in Example 1 except that 5.28 g of 1- (4-fluorophenyl) -3-propylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one. 35 g of compound 24 was obtained.
Elemental analysis (C84H72AlFThreeClThreeN9O9): Theoretical value (%) C 65.43, H 4.71, N 8.18
Actual value (%) C 65.28, H 4.62, N 8.00
1H NMRδ (CDCl3) Ppm: 0.96-1.06 (9H, m), 1.60-1.80 (24H, m), 2.82-3.11 (6H, m), 3.47 (9H, br s), 5.64-5.72 (3H, m), 6.75-6.92 (9H, m), 7.07-7.17 (3H, m), 7.25-7.28 (3H, m), 7.80-7.92 (6H, m).
IR (KBr) cm-1: 2962, 1765, 1579, 1074.
[0113]
Example 25
Except for using 2.16 g of 3-propyl-1- (4-trifluoromethylphenyl) pyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 4.44 g of compound 25 was obtained.
Elemental analysis (C87H72AlClThreeF9N9O9): Theoretical value (%) C 61.76, H 4.29, N 7.45
Actual value (%) C 61.51, H 4.42, N 7.20
1H NMRδ (CDCl3) Ppm: 0.92-1.03 (9H, m), 1.58-1.74 (24H, m), 2.87-3.08 (6H, m), 3.45-3.49 (9H, m), 5.69 (3H, m), 6.90-6.95 ( 3H, m), 7.20-7.47 (12H, m), 8.08 (6H, m).
IR (KBr) cm-1: 2962, 1765, 1551, 1065.
[0114]
Example 26
Using 8.35 g of 1- (4-chlorophenyl) -3-methylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl-2 -9.51 g of compound 26 was obtained in the same manner as in Example 1 except that 6.64 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of methyleneindoline.
Elemental analysis (C90H69AlClThreeN9O9): Theoretical value (%) C 69.56, H 4.48, N 8.11
Actual value (%) C 69.65, H 4.40, N 8.27
1H NMRδ (CDCl3) Ppm: 1.48-1.82 (18H, m), 2.49-2.71 (9H, m), 3.60-3.69 (9H, m), 5.62-5.91 (3H, m), 7.00-7.48 (18H, m), 7.58- 8.08 (12H, m).
IR (KBr) cm-1: 2929, 1732, 945.
[0115]
Example 27
Using 11.53 g of 1- (4-fluorophenyl) -3-methylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl- 11.00 g of compound 27 was obtained in the same manner as in Example 1 except that 7.08 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of 2-methyleneindoline.
Elemental analysis (C90H69AlClThreeFThreeN9O9): Theoretical value (%) C 71.85, H 4.62, N 8.38
Actual value (%) C 71.92, H 4.94, N 8.10
1H NMRδ (CDCl3) Ppm: 1.65-1.92 (18H, m), 2.50-2.78 (9H, m), 3.62-3.70 (9H, m), 5.84-5.94 (3H, m), 6.75-6.91 (6H, m), 7.23- 7.33 (3H, m), 7.40-7.67 (6H, m), 7.82-8.10 (15H, m).
IR (KBr) cm-1: 2929, 1736, 945.
[0116]
Example 28
Instead of 1-phenyl-3-propylpyrazolin-5-one, 2.16 g of 3-propyl-1- (4-trifluoromethylphenyl) pyrazolin-5-one was used and 5-chloro-1,3,3 -In the same manner as in Example 1, except that 1.29 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead of trimethyl-2-methyleneindoline, 1.22 g of compound 28 was obtained. Obtained.
Elemental analysis (C99H81AlF9N9O9): Theoretical value (%) C 68.39, H 4.70, N 7.25
Actual value (%) C 68.68, H 4.89, N 7.05
1H NMRδ (CDCl3) Ppm: 0.95-1.08 (9H, m), 1.44-1.93 (24H, m), 2.89-3.30 (6H, m), 3.63-3.72 (9H, m), 5.88-6.00 (3H, m), 7.20- 7.52 (15H, m), 7.61-8.30 (15H, m).
IR (KBr) cm-1: 2931, 1765, 947.
[0117]
Example 29
Example 1 is the same as Example 1 except that 1.02 g of 5-methoxy-1,3,3-trimethyl-2-methyleneindoline is used instead of 5-chloro-1,3,3-trimethyl-2-methyleneindoline. In the same manner, 1.70 g of Compound 29 was obtained.
Elemental analysis (C87H84AlN9O12): Theoretical value (%) C 70.86, H 5.74, N 8.55
Actual value (%) C 70.67, H 5.89, N 8.54
1H NMRδ (CDCl3) Ppm: 1.02 (9H, m), 1.24-1.76 (24H, m), 2.80-3.12 (6H, m), 3.44-3.48 (9H, m), 3.67 (9H, m), 5.65 (3H, m) , 6.57-6.90 (9H, m), 6.98-7.01 (3H, m), 7.10-7.18 (6H, m), 7.84-8.00 (6H, m).
IR (KBr) cm-1: 2958, 1763, 1016.
[0118]
Example 30
In the same manner as in Example 1 except that 18.25 g of 1-phenyl-3-trifluoromethylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, 4.04 g of Compound 30 was obtained.
1H NMRδ (CDCl3) Ppm: 1.19-1.77 (18H, m), 3.47-3.61 (9H, m), 5.52-6.00 (3H, m), 6.84-7.43 (18H, m), 7.52-8.18 (6H, m).
[0119]
Example 31
11.80 g of 1,3-dimethylpyrazolin-5-one was used instead of 1-phenyl-3-propylpyrazolin-5-one, and 5-chloro-1,3,3-trimethyl-2-methyleneindoline 13.65 g of compound 31 was obtained in the same manner as in Example 1 except that 18.25 g of 1,3,3-trimethyl-2-methylene-4,5-benzoindoline was used instead.
1H NMRδ (CDCl3) Ppm: 1.78-1.98 (18H, m), 2.54-2.67 (9H, m), 3.33-3.41 (9H, m), 3.56-3.63 (9H, m), 5.80 (3H, m), 7.28 (3H, m), 7.44 (3H, m), 7.63 (3H, m), 7.84-7.96 (9H, m).
[0120]
Example 32
2.46 g of compound 32 in the same manner as in Example 1 except that 1.72 g of 3,3-dimethyl-2-methyleneindoline was used instead of 5-chloro-1,3,3-trimethyl-2-methyleneindoline. Got.
Elemental analysis (C81H72AlN9O9): Theoretical value (%) C 72.47, H 5.41, N 9.39
Actual value (%) C 72.77, H 5.42, N 9.26
1H NMRδ (CDCl3) Ppm: 0.88-1.11 (9H, m), 1.24-1.55 (18H, m), 1.57-1.83 (6H, m), 2.53-3.07 (6H, m), 5.21-5.65 (3H, m), 6.78- 7.37 (21H, m), 7.57-8.04 (6H, m), 11.5-12.81 (3H, m).
IR (KBr) cm-1: 2962, 1770, 1013.
[0121]
Example 33
Using 18.25 g of 1-phenyl-3-trifluoromethylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl-2 -13.19 g of compound 33 was obtained in the same manner as in Example 1 except that 9.71 g of 5-methoxy-1,3,3-trimethyl-2-methyleneindoline was used instead of methyleneindoline.
1H NMRδ (CDCl3) Ppm: 1.24-1.79 (18H, m), 3.50-3.69 (9H, m), 3.75-3.88 (9H, m), 5.48-5.98 (3H, m), 6.49-7.29 (18H, m), 7.71- 8.15 (6H, m).
[0122]
Example 34
Using 18.25 g of 1-phenyl-3-trifluoromethylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl-2 -11.79 g of compound 34 was obtained in the same manner as in Example 1 except that 9.20 g of 5-methyl-1,3,3,5-tetramethyl-2-methyleneindoline was used instead of methyleneindoline.
1H NMRδ (CDCl3) Ppm: 1.25-1.79 (18H, m), 2.18-2.45 (9H, m), 3.50-3.64 (9H, m), 5.53-6.01 (3H, m), 6.62-7.30 (18H, m), 7.69- 8.11 (6H, m).
[0123]
Example 35
Using 18.25 g of 1-phenyl-3-trifluoromethylpyrazolin-5-one instead of 1-phenyl-3-propylpyrazolin-5-one, 5-chloro-1,3,3-trimethyl-2 -12.34 g of compound 35 was obtained in the same manner as in Example 1 except that 10.09 g of 1-methyl-2-methyleneindoline-3-spirocyclohexane was used instead of methyleneindoline.
Elemental analysis (C87H69AlF9N9O9): Theoretical value (%) C 66.03, H 4.39, N 7.97
Actual value (%) C 65.81, H 4.46, N 7.87
1H NMRδ (CDCl3) Ppm: 1.35-1.59 (6H, m), 1.68-2.17 (24H, m), 3.84 (9H, m), 5.59-5.92 (3H, m), 7.09 (9H, m), 7.26-7.46 (9H, m), 7.85-8.00 (9H, m).
IR (KBr) cm-1: 2936, 1771, 987.
[0124]
Example 36
The same procedure as in Example 1 was conducted except that 0.56 g of 5,7-dichloro-1,3,3-trimethyl-2-methyleneindoline was used instead of 5-chloro-1,3,3-trimethyl-2-methyleneindoline. 0.70 g of Compound 36 was obtained.
Elemental analysis (C84H72AlCl6N9O9): Theoretical value (%) C 63.40, H 4.56, N 7.92
Actual value (%) C 63.18, H 4.46, N 7.82
1H NMRδ (CDCl3) Ppm: 0.94-1.08 (9H, m), 1.35-1.82 (24H, m), 2.81-3.13 (6H, m), 3.80 (9H, m), 5.64-5.72 (3H, m), 6.87-7.24 ( 15H, m), 7.79-7.95 (6H, m).
IR (KBr) cm-1: 2960, 1765, 1070.
[0125]
B. Characterization of squarylium compounds
Example 37
Maximum absorption wavelength (λ) of chloroform solutions of the compounds obtained in Examples 1-36max) And the molar extinction coefficient at the maximum absorption wavelength. The results are shown in Listing 4.
[0126]
Example 38
The decomposition temperature of the compound obtained in Examples 1-36 was measured. The results are shown in Listing 4.
[0127]
Comparative Example 1
Similarly, the squarylium compound (compound 1) before metal complexation treatment in Examples 1 to 6 (not a metal complex)b~ 6b) Maximum absorption wavelength (λmax), The molar extinction coefficient at the maximum absorption wavelength and the decomposition temperature were measured. The result is shown in Listing 5.
[0128]
[Table 9]
[0129]
[Table 10]
[0130]
[Table 11]
[0131]
Example 39
The optical constants of the thin films of the compounds obtained in Examples 1 to 6 were measured. The result is shown in Listing 6.
[0132]
Comparative Example 2
Similarly, the squarylium compound (compound 1) before metal complex processing in Examples 1-6.b~ 6b) Was measured. The result is shown in Listing 7.
[0133]
[Table 12]
[0134]
[Table 13]
[0135]
From lists 6 and 7, it can be seen that a large refractive index was obtained by metal complexation, and the solubility in organic solvents was also improved.
[0136]
Example 40
The compound thin film obtained in Example 1, 2 or 4 was irradiated with light from a xenon lamp (50,000 lux), and the photodegradation rate constant was measured from the change in optical density over time. The result is shown in Listing 8. The photodegradation rate constant was determined by the following formula.
d [OD] / dt = k [OD]
[OD]: Optical density of squarylium compound thin film
k: Light degradation rate constant
[0137]
Comparative Example 3
Similarly, the squarylium compound (compound 1) before metal complexation treatment in Example 1, 2 or 4 was used.b2b4b) Was measured for the photodegradation rate constant. The result is shown in Listing 8.
[0138]
[Table 14]
[0139]
From the list 8, it can be seen that the light resistance is improved by forming a metal complex.
[0140]
C. Characterization of optical recording media using squarylium compounds
Examples relating to the optical recording medium will be described below.
[0141]
Example 41
Compound 1, 2,2,3,3-tetrafluoro-1 is formed on an injection-molded polycarbonate substrate having a groove depth of 1,750 mm, a half-width of 0.38 μm, and a guide groove having a track pitch of 0.74 μm and a thickness of 0.6 mm. A solution dissolved in -propanol was applied by a spinner to form an organic dye layer having a thickness of 900 mm.
Next, a gold 1,200 mm reflective layer is formed by sputtering, and a protective layer of 7 μm is formed thereon with an acrylic photopolymer. Then, an injection-molded polycarbonate flat plate substrate having a thickness of 0.6 mm is formed on the acrylic photopolymer. To obtain an optical recording medium.
A semiconductor laser beam having an oscillation wavelength of 658 nm and a beam diameter of 1.0 μm is recorded on the obtained optical recording medium, and an EFM signal (linear velocity of 3.5 m / second) is recorded while tracking. Reproduction was performed with light (reproduction power 0.7 mW). The obtained signal characteristics are shown in Listing 9.
[0142]
Examples 42-46
In Example 41, Compound 2, 3, 4, 5 or 6 was used in place of Compound 1, an optical recording medium was formed in exactly the same manner as in Example 41, and signal characteristics were measured. The obtained signal characteristics are shown in Listing 9.
[0143]
[Table 15]
[0144]
From the list 9, it can be seen that the optical recording medium of the present invention has a high reflectivity, high modulation degree and low jitter signal characteristics in accordance with the DVD-R standard.
[0145]
Example 47
In Example 41, an optical recording medium was formed using a mixture of Compound 1 and Metal Complex No. 3 (see List 2; weight ratio 10/3) instead of Compound 1.
This optical recording medium was irradiated with a xenon lamp (50,000 lux) for 10 hours, and the residual ratio of optical density was evaluated. The optical density residual ratio was determined by the following equation.
Optical density residual ratio = Id/ I0× 100 (%)
Id: Optical density after light irradiation
I0: Optical density before light irradiation
The obtained light resistance test results are shown in List 10.
[0146]
Examples 48-50
Instead of metal complex No. 3, aromatic amine compound No. 104 (see list 3) (Example 48) was used, and instead of a mixture of compound 1 and metal complex No. 3, compound 2 and metal complex No. 3 were used. .12 (see list 2) or in the same manner as in example 47, except that a mixture of compound 2 and aromatic amine compound No. 113 (see list 3) (example 50) is used. Thus, an optical recording medium was formed. The obtained optical recording medium was subjected to a light resistance test in the same manner as in Example 47. The result of the light resistance test is shown in List 10.
[0147]
[Table 16]
[0148]
From List 10, it can be seen that the optical recording medium of the present invention exhibits excellent light resistance.
Claims (12)
ここに、
アラルキル基、アリール基または複素環基の置換基は、同一または異なって、水酸基、カルボキシル基、ハロゲン原子、置換基を有していてもよいアルキル基、アルコキシ基、ニトロ基、置換基を有していてもよいアミノ基よりなる群から選択される1〜5個の置換基であり、
アルキル基の置換基は、同一または異なって、水酸基、カルボキシル基、ハロゲン原子およびアルコキシ基よりなる群から選択される1〜3個の置換基であって、
アミノ基の置換基は、同一または異なって1〜2個のアルキル基であり、アルキル基の置換基は前記と同義である。]で表される金属錯体を形成したスクアリリウム化合物。Formula (I):
here,
The substituents of the aralkyl group, aryl group or heterocyclic group are the same or different and have a hydroxyl group, a carboxyl group, a halogen atom, an alkyl group which may have a substituent, an alkoxy group, a nitro group, or a substituent. 1 to 5 substituents selected from the group consisting of amino groups that may be
The substituents of the alkyl group are the same or different and are 1 to 3 substituents selected from the group consisting of a hydroxyl group, a carboxyl group, a halogen atom and an alkoxy group,
The substituents of the amino group are the same or different and are 1 to 2 alkyl groups, and the substituents of the alkyl group are as defined above. ] The squarylium compound which formed the metal complex represented by this .
ここに、
アラルキル基、アリール基、アルコキシ基、芳香族環または複素環の置換基は、同一または異なって、水酸基、カルボキシル基、ハロゲン原子、置換基を有していてもよいアルキル基、アルコキシ基、ニトロ基、置換基を有していてもよいアミノ基よりなる群から選択される1〜5個の置換基であり、
アルキル基の置換基は、同一または異なって、水酸基、カルボキシル基、ハロゲン原 子およびアルコキシ基よりなる群から選択される1〜3個の置換基であって、
アミノ基の置換基は、同一または異なって1〜2個のアルキル基であり、アルキル基の置換基は前記と同義である。]で表される請求項1記載の金属錯体を形成したスクアリリウム化合物。Y = CH- is represented by the general formula (II):
here,
Aralkyl group, aryl group, alkoxy group, aromatic ring or heterocyclic substituent may be the same or different, and may be a hydroxyl group, a carboxyl group, a halogen atom, an optionally substituted alkyl group, an alkoxy group, a nitro group. , 1 to 5 substituents selected from the group consisting of optionally substituted amino groups,
Substituent alkyl groups are the same or different, a hydroxyl group, a carboxyl group, 1 to 3 substituents selected from the group consisting of halogen atom and alkoxy group,
The substituents of the amino group are the same or different and are 1 to 2 alkyl groups, and the substituents of the alkyl group are as defined above. The squarylium compound which formed the metal complex of Claim 1 represented by these .
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- 2001-12-19 KR KR1020027010528A patent/KR100766474B1/en not_active Expired - Fee Related
- 2001-12-19 AT AT01271415T patent/ATE335050T1/en not_active IP Right Cessation
- 2001-12-19 EP EP01271415A patent/EP1334998B1/en not_active Expired - Lifetime
- 2001-12-19 US US10/203,409 patent/US6660867B2/en not_active Expired - Fee Related
- 2001-12-19 DE DE60121990T patent/DE60121990T2/en not_active Expired - Lifetime
- 2001-12-19 WO PCT/JP2001/011116 patent/WO2002050190A1/en active IP Right Grant
- 2001-12-19 AU AU1745102A patent/AU1745102A/en active Pending
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Also Published As
Publication number | Publication date |
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CA2400181C (en) | 2008-08-05 |
AU1745102A (en) | 2002-07-01 |
US20030187272A1 (en) | 2003-10-02 |
ATE335050T1 (en) | 2006-08-15 |
EP1334998A1 (en) | 2003-08-13 |
KR20020097177A (en) | 2002-12-31 |
KR100766474B1 (en) | 2007-10-15 |
DE60121990T2 (en) | 2007-03-08 |
ES2269302T3 (en) | 2007-04-01 |
US6660867B2 (en) | 2003-12-09 |
WO2002050190A1 (en) | 2002-06-27 |
CN1404510A (en) | 2003-03-19 |
DE60121990D1 (en) | 2006-09-14 |
CA2400181A1 (en) | 2002-06-27 |
EP1334998A4 (en) | 2004-11-24 |
EP1334998B1 (en) | 2006-08-02 |
JPWO2002050190A1 (en) | 2004-04-22 |
TW588090B (en) | 2004-05-21 |
AU2002217451B2 (en) | 2006-07-20 |
CN1330708C (en) | 2007-08-08 |
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